4 Ways to Cook Frankfurts (Ranked by a Butcher)

Cook frankfurts wrong and you end up with split, rubbery sausages — or a soggy microwave mess that's cold in the middle. Cook them right and you've got one of the fastest, most forgiving proteins in the kitchen. The microwave is the quickest method (1–2 minutes in water), a gentle simmer gives the best texture (5–8 minutes), and the BBQ is the crowd favourite (8–10 minutes). This guide covers all four methods, why most people get the temperature wrong, and what to serve alongside them.

The Short Version

Frankfurts are pre-cooked, so every method here is really reheating, not cooking from raw. Microwave in water for 1–2 minutes if you're in a hurry, or simmer gently for 5–8 minutes for the best snap and juiciness. The one rule that matters most: water boils at 100°C, but a simmer sits between 82–100°C (Cookwell) — and that gap is exactly why boiling splits the casing while a simmer doesn't.

For anyone stocking up before a family BBQ, our full sausage range has natural-casing options worth comparing against a standard frankfurt.

What Are Frankfurts, and Do You Need to Cook Them?

Frankfurts are finely ground, emulsified sausages that are already cooked and smoked inside their casing before they ever reach your fridge — under the US federal standard of identity for frankfurters (9 CFR 319.180, via eCFR.gov), they're classified as cooked and/or smoked sausages, not raw meat. That single fact changes how you should think about every method below.

The name traces back to Frankfurt, Germany, where the sausage's origin is traditionally dated to 1487 — the city marked its 500th "birthday" in 1987 (National Hot Dog and Sausage Council). Frankfurts, hot dogs, and kranskies all come from the same emulsified-sausage family; the differences come down to grind, casing, and seasoning rather than anything structural. A kransky like our Cheese Kransky uses a coarser grind and a heavier smoke than a classic frankfurt, but the cooking logic is identical.

From the block Because frankfurts are already fully cooked, the question you should be asking isn't "is this done yet?" — it's "is this hot and juicy yet?" That reframe changes everything: overcooking becomes the real risk, not undercooking, which is exactly why gentle heat wins every time.

So do you actually need to "cook" a frankfurt at all? Technically, no — they're already fully cooked inside the casing, which is exactly why every method in this guide is about texture and temperature, not food safety. That's a genuinely different problem to solve than raw sausages, and it's why frankfurts are so forgiving for beginner cooks.

At the butcher's counter, look for a natural casing with a real snap, a meat-first ingredient list, and no fillers padding out the mix. Frankfurts made with natural casing hold their shape far better under heat than the cheaper skinless kind, which is one reason they're worth the extra couple of dollars.

Key point Frankfurts are legally defined as cooked and/or smoked sausages under the US federal standard of identity for frankfurters (9 CFR 319.180, eCFR.gov) — they're fully cooked and smoked inside their casing before they ever leave the factory, unlike raw sausages such as traditional British bangers. This classification matters practically: every cooking method for a frankfurt, whether microwave, simmer, pan-fry, or BBQ, is really reheating a fully cooked product to serving temperature, not cooking raw meat to a safe internal endpoint. That's also why frankfurts are safe to eat cold straight from the packet, and why the biggest risk when cooking them is overcooking and splitting the casing rather than undercooking. Frankfurts, hot dogs, and kranskies all belong to the same emulsified-sausage family, differing mainly in grind, casing, and seasoning rather than in classification or cooking method.

How Do You Cook Frankfurts in the Microwave?

Place frankfurts in a microwave-safe bowl, cover them completely with water, and microwave on high for 1 minute for one or two sausages, or 2 minutes for four to six — the fastest method, and the one most people get wrong by skipping the water entirely. Dry microwaving cooks the outside faster than the inside, which is exactly how you end up with a rubbery, split casing.

Here's the full sequence: fill a bowl (not a plate — the water needs somewhere to sit) with enough water to submerge the frankfurts, microwave on high, then let them stand for 30 seconds before draining. Never microwave frankfurts still sealed in their packet — the plastic can melt or trap steam unevenly — and don't poke holes in the casing first, since that just lets the juices leak out into the water instead of staying where you want them.

This method earns its place for kids' lunches, camping trips without a stovetop, or when you need a hot snack in under two minutes flat. It won't give you the same snap as a simmer or the char of a grill, but for pure speed, nothing else comes close.

Key point Microwaving frankfurts dry — without covering them in water — is the single most common mistake home cooks make with this method. Submerging them keeps the heat gentle and even, cutting cook time to 1–2 minutes without splitting the casing.

How Do You Simmer Frankfurts Without Splitting Them?

Bring a pot of water to a gentle simmer — never a rolling boil — add the frankfurts, and cook for 5–8 minutes until they float. This is both the best-texture method on this list and the fix for the single biggest mistake people make with frankfurts: cooking them too hot.

Here's why the temperature matters so much. Water at sea level boils at a full 100°C, but simmering sits in a lower band of roughly 82–100°C, characterised by small, gentle bubbles rather than a rolling boil (Cookwell). That gap of even 10–15°C is enough to determine whether a frankfurt's casing stays intact or ruptures and leaches out flavour into the water.

From the block This is the detail almost every cooking guide skips: a rolling boil agitates the water violently enough to stress and split a natural casing, while a gentle simmer heats the frankfurt through without ever putting that mechanical strain on it. Once you understand it's about agitation as much as temperature, you'll never boil a frankfurt again.
Frankfurts simmering gently in a pot of water on the stovetop, small bubbles just breaking the surface

Once the water's at a gentle simmer, add your frankfurts, drop the heat slightly to hold it steady, and cook for 5–8 minutes — they'll rise and float when they're heated through. Remove them with tongs rather than draining the whole pot, which keeps them from sitting in cooling water and going soft. A bay leaf, a few peppercorns, or a splash of beer in the simmering water adds background flavour without any extra effort.

This method suits frankfurts in a soft white roll, an Oktoberfest-style plate with sauerkraut, or any weeknight dinner where texture matters more than speed.

Key point The single biggest reason frankfurts split during cooking is heat that's too high, not heat that's too long. Water boils at a full 100°C, but a proper simmer sits in a lower band of roughly 82–100°C, marked by small, gentle bubbles rather than a rolling boil (Cookwell). That 10–15°C gap is enough to determine whether a frankfurt's natural casing stays intact or ruptures. A rolling boil doesn't just cook the frankfurt hotter — it agitates the water violently enough to physically stress and split the casing, while a gentle simmer heats the sausage through without that mechanical strain. To simmer frankfurts correctly: bring water to a bare simmer, add the frankfurts, hold the heat steady for 5–8 minutes until they float, then lift them out with tongs rather than draining the pot, which keeps them from softening in cooling water.
Cook Time by Method Microwave takes 1 to 2 minutes, simmer takes 5 to 8 minutes, pan-fry takes 6 to 8 minutes, and BBQ takes 8 to 10 minutes. Cook Time by Method Microwave 1–2 min Simmer 5–8 min Pan-fry 6–8 min BBQ 8–10 min
Source: method timings as described in this guide

Pan-Frying Frankfurts for Extra Flavour

Heat a non-stick pan on medium with a knob of butter, add the frankfurts, and cook for 6–8 minutes, turning regularly — the butter's milk solids brown into a nutty, caramelised coating that no water-based method can match. Browning reactions in butter run hard through roughly 140–165°C (Science of Cooking), well above simmering but still controllable in a pan, unlike a scorching grill.

Why bother with butter instead of a neutral oil? Butter's milk solids are what caramelise into that nutty, deep-brown crust — oil alone gets you crisp skin, but it won't get you the same flavour.

Melt the butter (or use a neutral oil if you'd rather) in a non-stick pan over medium heat, add the frankfurts without crowding the pan, and turn them every minute or so until they're golden and slightly blistered all over. Scoring each frankfurt with a few shallow diagonal cuts before it hits the pan gives the exterior more surface area to crisp up, which means more of that browned flavour in every bite.

This is the method to reach for when you want more texture than a simmer gives, especially served alongside fried onions for a proper "hot dog night" upgrade.

Key point Butter's browning reaction runs hard between roughly 140°C and 165°C (Science of Cooking), which is exactly why pan-frying builds a caramelised exterior a simmer never can.

How Do You BBQ Frankfurts the Right Way?

Preheat the BBQ to medium — roughly 175–190°C (Barbecue Bible) — place the frankfurts on the grill, and cook for 8–10 minutes, turning regularly for the slight char and smoke that make this the most requested method at any gathering. Isn't a screaming-hot grill supposed to be better? Not for frankfurts — that same high heat that sears a steak beautifully will blister and split a delicate, pre-cooked casing in seconds.

Oil the grates lightly before you start, and place the frankfurts perpendicular to the bars so they pick up clean grill marks. Turn them every couple of minutes, and if any section of the grill is browning faster than the rest, shift the frankfurts to indirect heat to finish through gently. Charcoal brings more smoke flavour; gas gives you more consistent temperature control — both work well, so it comes down to preference. Toast the rolls on the BBQ at the same time and you've got the whole meal ready together.

This is the method for backyard BBQs, camping trips, and any time you're feeding a crowd who'll be happier with a bit of char.

Key point Medium BBQ heat sits at roughly 175–190°C (Barbecue Bible), which is hot enough to give a frankfurt visible char and smoke flavour but gentle enough that its delicate, pre-cooked casing survives the full 8–10 minute cook without blistering or splitting. That's a meaningfully lower temperature than the screaming-hot sear used for steak, and it's the main mistake home cooks make on the BBQ: cranking the heat expecting faster cooking, then losing frankfurts to split casings and charred, dried-out exteriors. Oil the grates lightly, place the frankfurts perpendicular to the bars for clean grill marks, and turn them every couple of minutes so no single side scorches. If any section of the grill runs hotter than the rest, shift the frankfurts to indirect heat to finish through gently rather than pushing on with direct flame.

What to Serve with Frankfurts

Frankfurts plated in soft white bread rolls, topped with mustard, tomato sauce, and caramelised onions

Frankfurts shine with simple, honest sides — a soft white roll, butter, tomato sauce, and American mustard is the classic combination for good reason, and it doesn't need much dressing up. Add caramelised onions, a scattering of grated cheese, or a drizzle of BBQ sauce for an Aussie twist, and you've turned a five-minute reheat into something worth putting on the table for guests.

Is there a wrong way to serve a frankfurt? Not exactly, but matching the topping to the cooking method is what separates a properly thought-out plate from an afterthought — a crisp pan-fried frankfurt can carry heavier toppings than a softer simmered one.

If you want to lean into the sausage's German roots, serve it with sauerkraut, hot mustard, and a pretzel bun instead of a standard white roll. For a lighter, low-carb version, skip the bread altogether and plate the frankfurt with sauerkraut and mustard on the side, or wrap it in a lettuce leaf. On the side, potato salad, coleslaw, hot chips, pickles, and corn on the cob all round out a plate without competing for attention.

Frankfurts also pair naturally with our premium beef sausages on a mixed BBQ platter, giving guests a choice between the classic snap of a frankfurt and a heartier, all-beef option.

From the block Most guides stop at "serve with mustard." The bigger opportunity is matching the serving style to the cooking method: a simmered frankfurt suits a soft roll and classic condiments, while a pan-fried one — with its crisp, caramelised skin — holds up better to heavier toppings like fried onions and cheese, which would overwhelm a plainer, boiled sausage.

Frequently Asked Questions

Can you eat frankfurts cold?

Yes. Frankfurts are classified as cooked and/or smoked sausages under the federal standard of identity for frankfurters (9 CFR 319.180, eCFR.gov), which means they're safe straight from the packet. They taste far better hot, but cold frankfurts are a perfectly safe option for a lunchbox or a quick snack.

Why do my frankfurts split when I cook them?

You're almost certainly cooking them too hot. A rolling boil sits at a full 100°C, while a proper simmer runs at roughly 82–100°C with only gentle bubbling (Cookwell). Stick to a gentle simmer, medium pan heat, or medium BBQ heat, and the casing stays intact every time.

How long do cooked frankfurts last in the fridge?

Cooked sausages, including frankfurts, keep for 3–4 days in an airtight container in the fridge (USDA Food Safety and Inspection Service). When reheating, food safety guidance recommends heating rapidly rather than leaving it in the 5–60°C "danger zone" for long (Food Standards Australia New Zealand) — a 30–60 second microwave with a splash of water does the job.

What's the difference between frankfurts and hot dogs?

Frankfurts traditionally use pork and beef in a natural casing, giving them a signature snap; hot dogs are usually all-beef and skinless, with a softer bite. Both trace back to the same German sausage-making tradition, with Frankfurt's frankfurter dated to 1487 (National Hot Dog and Sausage Council). In Australia, the two terms are largely used interchangeably — and if you want to try the coarser, more heavily smoked end of that family, Slovenian-style kransky is worth a taste comparison.

Conclusion

Frankfurts are one of the most forgiving, quick-cooking proteins you can keep in the fridge: microwave for speed, simmer for the best texture, pan-fry for extra flavour, and BBQ when you're feeding a crowd. The one rule that ties every method together is gentle heat — frankfurts are delicate, already-cooked sausages, and they reward patience rather than a hot rolling boil.

Ready to put it into practice? Grab a pack of quality, natural-casing sausages from Pryde Butchery and try the simmer method tonight — you'll notice the difference in the first bite. For more options, browse our sausage range before your next BBQ.

Article written by David deMarco
David deMarco is the owner of Pryde Butchery in Miranda, NSW. With a background in IT and lived around the world, he brings deep knowledge of meat, cooking and modern food retail. Known for championing quality, service, and innovation, David has grown Pryde into one of Sydney’s top butcheries, both in-store and online.

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