SE WI here!
Have ben to them a few times since I live in WI but don't go often because both my husband and son are allergic to fish.
A fish boil is a Great Lakes culinary tradition in areas of Wisconsin (USA), with large Scandinavian populations, particularly Door County, Port Wing and Port Washington, Wisconsin.[1] The meal consists of Lake Michigan or Lake Superior whitefish (though lake trout can be used), with other ingredients.
The fish is typically caught by local fishermen, cut into small chunks and cooked in boiling water with red potatoes. Some boilers add onions as well. Salt is the only seasoning used, and used only to raise the specific gravity of the water.[2]
The cooking of the fish is an elaborate presentation. Restaurants typically ask that patrons arrive a half hour early to witness the boiling. The fish and potatoes are placed in a cast-iron kettle. When the water comes to a boil the potatoes, kept in a wire basket, are lowered in.
The fish are then placed in another wire basket and lowered in. When the fish oils rise to the top of the pot, the boiler will add a small amount of kerosene to the flames. The increase in flames causes a boilover, the fish oils spill over the side of the pot, and the fish is done.
The fish boil was started at the Viking Grill in Ellison Bay, Wisconsin by then grill owners Annette and Lawrence Wickman when they decided to duplicate the trout boils held by local churches and civic groups but instead use the local whitefish.
Found on the Viking Grill's website:
If you can't make it to a fish boil - prepare one at home for yourself!
At Home Fish Boil - serves 8
16 chunks of Whitefish (2” slices)
16 small red potatoes (ends cut off)
16 small white onions (peeled)
1/2 lb. salt
2 gal. water
Add 1/4 lb of salt to water and bring to a boil. Add potatoes and boil for 16 minutes. Add onions and boil for 4 minutes more. Add fish and another 1/4 lb salt, boil for 10 minutes and drain into a colander. Serve with melted butter, lemon and coleslaw.
Serve with iced tea or your favorite brew. My personal recommendation is a tall frosty mug of Leinenkugals (local made beer). Enjoy!