Door County Fish Boil

Door County Fish Boil
⏱️ cook time 45 minutes
🍽️ servings 4
⚡ Difficulty medium

intro

A beloved communal Wisconsin tradition of briny boiled whitefish, potatoes, and onions, finished with a dramatic boil-over to cut rich fish oils.

Ingredients

Skin-on lake whitefish steaks (5cm / 2in thick) 900g (2 lbs)
Small unpeeled red potatoes (4cm / 1.5in diameter, scrubbed) 680g (1.5 lbs)
Yellow onions (peeled, quartered, root end intact) 450g (1 lb, ~2 medium)
Kosher salt 120g (1/2 cup)
Whole black peppercorns 1 tbsp (6g)
Dried bay leaves 3 leaves
Unsalted butter (melted, for serving) 120ml (1/2 cup)
Lemon wedges (for serving) 8 wedges (from 2 medium lemons)

Steps

1

Prep outdoor boil station

Set a 19L (5 gallon) heavy-gauge stockpot on a sturdy outdoor propane burner or open fire grate, positioned at least 3 meters (10 feet) from flammable structures or materials. Fill the pot with 12L (3 gallons) of cold tap water, add 120g kosher salt, 1 tbsp whole black peppercorns, and 3 bay leaves, then cover and bring to a rolling boil over high heat (12-15 minutes).

Step 1
step1:Prep outdoor boil station
2

Boil the red potatoes

Once the water reaches a hard, churning rolling boil, remove the pot lid and carefully add the whole scrubbed unpeeled red potatoes. Maintain a steady medium-high rolling boil (do not turn down heat enough to stop bubbling) and cook uncovered for exactly 12 minutes, until potatoes yield slightly when pierced with a paring knife but do not split open.

Step 2
step2:Boil the red potatoes
3

Add onion quarters

After the potatoes have cooked for 12 minutes, gently lower the peeled, quartered yellow onions (kept intact at the root end to prevent pieces from separating and dissolving) into the boiling pot. Maintain the medium-high rolling boil, and cook uncovered for an additional 8 minutes, until onion edges turn soft and translucent.

Step 3
step3:Add onion quarters
4

Cook the whitefish

Once the onions have cooked for 8 minutes, carefully lower the 900g of skin-on whitefish steaks into the pot, preferably in a stainless steel wire mesh boil basket for easy removal. Return the water to a steady medium-high rolling boil, and cook the fish uncovered for exactly 10 minutes; done fish will flake easily when prodded with a fork and float near the water surface.

Step 4
step4:Cook the whitefish
5

Do signature boil-over

After the fish has cooked for 10 minutes, turn the burner to its highest heat setting (for traditional open-fire setups, add 1 tbsp of kerosene directly to the fire below the pot, never into the water, with extreme caution) to trigger a vigorous, foamy boil-over that lasts 30-45 seconds. This step spills strong, fishy surface oils over the pot edge for a milder, cleaner flavor. Turn off the heat immediately once the boil-over subsides.

Step 5
step5:Do signature boil-over
6

Drain and serve hot

Lift the wire boil basket (or use a large slotted spoon to remove ingredients in batches) from the pot, and let all excess briny water drain for 60 seconds. Arrange the fish, potatoes, and onions on a large serving platter, drizzle evenly with 120ml melted unsalted butter, and serve immediately with lemon wedges on the side.

Step 6
step6:Drain and serve hot

Tips

1.Stick to exact cooking times for each ingredient: whitefish becomes tough and rubbery if boiled longer than 10 minutes, and potatoes will turn mushy if overcooked before adding other ingredients.
2.If using the traditional kerosene method for the boil-over, never pour kerosene directly into the water or onto the food, keep a Class B fire extinguisher within arm’s reach, and stand well back to avoid burns from splashing boiling water.
3.Skip add-ins like shrimp, corn on the cob, or smoked sausage common to Low Country boils—authentic Door County fish boils only feature the simple trio of whitefish, potatoes, and onions, served with butter and lemon.

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Door County Fish Boil:Frequently Asked Questions

1.Why is the dramatic boil-over step such an important part of an authentic Door County fish boil?
That iconic boil-over isn’t just fun showmanship! As fish cooks, rich, strong-tasting fish oils rise to the pot’s surface. Cranking heat high (traditionally with a small splash of fuel on the outdoor fire) causes the pot to bubble over, skimming those heavy oils off for a clean, briny, non-greasy final flavor that defines the dish.
2.Can I use a different type of fish if I can’t find fresh lake whitefish?
Lake whitefish’s mild, sweet, firm flesh is the gold standard for authentic flavor, but if you can’t source it, opt for skin-on cod or lake trout steaks cut to the same 2-inch thickness. Skip oily fish like salmon or mackerel—they release too much heavy oil that even the boil-over step can’t cut, throwing off the dish’s light profile.
3.Why does the recipe call for unpeeled potatoes and quartered onions with the root end intact?
These choices are all about texture and low-fuss, reliable cooking! Unpeeled red potatoes hold their shape perfectly through the long rolling boil instead of turning mushy, with a nice earthy bite from the skins. Leaving the onion root end intact keeps layers from separating and floating apart, so every serving gets a neat, tender wedge.
4.How much kosher salt do I need to get that signature briny boil flavor?
Traditional boils use water nearly as briny as seawater! For a standard 12-quart home stockpot, use 1 cup of Diamond Crystal kosher salt, or ½ cup of denser Morton’s kosher salt. Taste the water before adding ingredients—it should taste noticeably salty, like ocean water, to evenly season every component all the way through.
5.What order do I add ingredients to the pot to avoid overcooked fish or mushy potatoes?
Timing is everything for perfectly cooked components! Bring salted, peppercorn-spiked water to a rolling boil, add the small red potatoes first and cook for 12 minutes, then add quartered onions and cook 4 more minutes. Last, lower fish steaks in a wire basket and cook exactly 10 minutes before doing the final boil-over.
6.Do I need a traditional outdoor fire rig to make this at home, or can I use my kitchen stove?
You don’t need a fancy outdoor fire rig to pull off a great fish boil, even if the communal cookout vibe is part of the tradition! If using your kitchen stove, work in smaller batches in a large stockpot, skip the fuel splash trick, and crank burners to high for 60-90 seconds to get the oil-skimming boil-over, keeping a close eye to avoid stovetop mess.
7.Why are the potatoes and fish cut to such specific, uniform sizes?
Those exact measurements ensure every component cooks evenly without guesswork! 1.5-inch diameter red potatoes cook through perfectly in their pre-fish window without turning mealy, and 2-inch thick whitefish steaks hit tender, flaky doneness in 10 minutes without falling apart. Oddly sized pieces lead to uneven, disappointing results.
8.What are the traditional, authentic sides to serve with a Door County fish boil?
Stick to simple, classic Wisconsin pairings to keep flavors true to tradition! Serve drained fish, potatoes, and onions with melted drawn butter for dipping, tangy vinegar-based coleslaw, crusty rye bread, lemon wedges, and a sprinkle of parsley. Skip spicy blends like Old Bay—those are for Southern boils and will overpower the mild whitefish.
9.How do I keep delicate whitefish steaks from falling apart while they boil?
The easiest trick is to use a wire mesh boil basket to lower and lift all the fish at once, instead of dropping individual steaks directly into churning water. Keep the boil steady rather than violently raging once fish is added, don’t stir the pot, and always use skin-on cuts, which help hold the tender flesh together.
10.The recipe uses whole black peppercorns—do I have to fish them all out before serving?
You don’t need to stress about removing every last peppercorn! Left whole, they’ll sink to the bottom of the pot as ingredients cook, and won’t make the boil overly spicy the way cracked or ground pepper would. If you want easier serving, tuck peppercorns in a small cheesecloth sachet before adding them, but this step is totally optional.
11.Can I scale this recipe down for a small group, or is it only for large crowds?
While fish boils are famous as big communal events, you can absolutely scale the recipe down for 2 to 4 people! Cut ingredient quantities proportionally, use a 6-quart stockpot, and keep the exact same cook times as long as your potato and fish cuts match the recipe measurements. You’ll get the same great briny flavor without the big crowd.
12.How do I tell when the whitefish is perfectly done, so I don’t end up with dry, overcooked fish?
The fish is done when it flaks easily with a fork at the thickest point, and hits 145°F on an instant-read thermometer. The 10-minute cook time for 2-inch steaks in a rolling boil is extremely reliable, but it never hurts to check one steak right before the boil-over. Pull the fish as soon as it flaks to avoid dry, crumbly flesh.

Comments (5)

3 days ago

OMG this was such a hit at our neighborhood potluck last weekend! I’ve never been to Door County but always heard about the famous fish boils, so I was nervous to get it right, but the steps were super easy to follow even for a medium-difficulty recipe. The whole family went back for seconds, even my picky 8 year old who swears he hates fish! We did the traditional kerosene boil over trick for fun and all the neighbors thought it was the coolest thing ever. SO good, will be making this all summer long!

2 days ago

Wait the boil over trick is non-negotiable! I grew up going to Door County every summer with my grandparents and if you don’t get that dramatic flare up it just doesn’t feel right, haha. So stoked this turned out so well for your potluck!

2 days ago

So glad this was a potluck hit, Molly! The boil over trick is such a fun, iconic part of the experience—just make sure folks stand back a safe 3 or 4 feet when you do it, and you’re golden! Can’t beat that smoky, buttery fish and potato combo for summer cookouts.

1 week ago

Really solid recipe! Cook time was spot on at 45 minutes, which was perfect for a quick weeknight dinner with my partner. I only knocked off a star because I used cod instead of the traditional whitefish, since that’s all my grocery store had, and it was a little flakier than I expected. Still tasted amazing though, the boiled potatoes and onions with that melted butter dip? Game changer. Will definitely grab the right fish next time I make it.

5 days ago

Thanks for the honest feedback, Luis! Cod is a totally fine swap if you can’t find fresh Great Lakes whitefish, just cut back the boil time by 1-2 minutes so it doesn’t fall apart on you. So glad you loved the butter dip—it’s easily my favorite part of the whole meal too!

2 hours ago

Just finished making this for my dad’s Father’s Day dinner and he RAVED about it! He went to college in Wisconsin and has been talking about Door County fish boils for literal years, saying he could never find a recipe that tasted like the real deal. I was worried I’d mess it up since I’m not the most confident cook, but the instructions were so clear. He said it tasted exactly like the ones he had on trips up north when he was younger. 10/10, already saved this to my recipe folder to make for our next family camping trip!

5 days ago

Taste was great, but I had a couple issues with the recipe. First, I wish it specified how big to cut the potatoes, because mine were still rock hard after the recommended boil time while the fish was fully done. Ended up having to fish all the fish out and boil the potatoes for another 10 minutes, which threw off the whole timing. Also, I felt like the salt amount was way too high for my taste, ended up having to rinse everything off a little before serving. Might give it another go with adjustments though.

3 days ago

Pro tip! Cut the potatoes into 1-inch cubes, same size you would for potato salad, and toss them in the boil a full 10 minutes before you add the fish! That way everything finishes at the exact same time. I also cut the salt in half the first time I made it and it was perfect for my family’s taste too.

yesterday

Made this for our annual lake trip meal prep and it was perfect! We prepped all the veggies the night before, tossed everything in the big pot on the camp stove, and fed 8 people with zero stress. The lemon butter sauce is to die for, I ended up making a double batch because everyone was dipping their potatoes and even their bread in it. My friends are already begging me to make it again for our trip next month. Game changer for easy group meals when you’re camping!

2 hours ago

Did you do the famous boil over trick on the camp stove? I’ve been nervous to try it away from my backyard fire pit, worried I’ll make a huge mess or accidentally melt my camp gear, haha!

30 minutes ago

So happy this worked out for your lake trip, Jessie! Prepping all the veggies the night before is such a smart hack for group camping trips, that’s exactly how we do it too. Quick answer for Chris: you can totally do the boil over on a camp stove, just set it up in an open area away from overhanging branches or tents, and keep a small fire extinguisher handy just in case! And definitely don’t skip the double batch of lemon butter—everyone always wants extra for dipping.