Toss frozen king crab legs in the crock pot and 4 other simple ingredients to get a meal so delicious your friends will be begging for more!

This little slow cooker number is my nod to those church-basement potlucks where someone always shows up with something cheesy, toasty, and just a little bit fancy. Using frozen king crab legs means you can toss everything straight into the crock pot with only four other simple ingredients and walk away. By the time Pretzel Day rolls around—or any game day or family night—you’ve got warm, buttery crab piled onto soft pretzel rolls with melty cheese on top. It’s the kind of easy Midwestern comfort food that tastes like you fussed all afternoon, even though the slow cooker did the work.

Serve these crab melts hot, right off the slow cooker, spooned generously over warm pretzel buns or pretzel rolls. A simple side of coleslaw, kettle chips, or a crisp green salad balances the richness nicely. A crock of dill pickles or pickled beets on the table feels right at home in a Midwestern kitchen. If you’re hosting a crowd, keep the crab mixture on “warm” in the slow cooker and let folks build their own melts as they arrive, with extra shredded cheese and mustard on the side for those who like a little something extra.

Servings: 6

2 pounds frozen king crab legs (do not thaw)

Place the frozen king crab legs in the bottom of a 4- to 6-quart slow cooker, arranging them in a single layer as best you can. This should look like a close-up top-down view of the frozen legs nestled in the crock.

Dot the butter pieces evenly over the frozen crab legs. Cover the slow cooker with the lid.

Cook on LOW for 3 to 4 hours, or until the crab legs are fully heated through and the shells are bright red and hot to the touch. The meat should be opaque and pull away from the shell easily. Avoid cooking on HIGH, as the delicate crab meat can overcook and turn tough.

Using tongs, carefully remove the hot crab legs from the slow cooker and set them on a cutting board or large tray. Let them cool just enough to handle safely.

Crack the shells with kitchen shears or a crab cracker and gently remove all the crab meat, discarding shells and cartilage. Roughly chop the crab meat into bite-size pieces and place it in a medium mixing bowl.

Add 1/2 cup of the shredded cheddar cheese and the mayonnaise to the warm crab meat. Stir gently until everything is well combined and the cheese starts to melt from the heat of the crab, forming a creamy, chunky mixture.

Return the crab mixture to the slow cooker crock, spreading it in an even layer. Sprinkle the remaining 1/2 cup shredded cheddar cheese over the top.

Cover and cook on LOW for 15 to 20 minutes, just until the cheese on top is melted and the crab mixture is hot and bubbly around the edges. Switch the slow cooker to WARM once it’s ready.

About 5 to 10 minutes before serving, split the pretzel buns and warm them in a low oven (around 300°F/150°C) or in a dry skillet until soft and heated through.

To serve, spoon a generous scoop of the hot cheesy crab mixture onto each warm pretzel bun half, then top with the other half or serve open-faced as melts. Serve immediately while everything is hot and gooey.

For a little zip, you can stir in a teaspoon of prepared yellow mustard or Dijon with the mayonnaise before mixing it into the crab. A pinch of garlic powder or onion powder fits right in with the cozy, Midwestern flavor profile. If you like heat, add a few dashes of hot sauce or a pinch of cayenne to the crab mixture. You can also swap the mild cheddar for Colby-Jack, Monterey Jack, or a sharp cheddar if that’s what you keep on hand. For smaller bites at a party, use pretzel slider buns or pretzel rolls cut in half and serve the crab mixture as open-faced mini melts. If king crab is hard to find, snow crab legs can be used the same way, keeping an eye on doneness so they don’t overcook. Food safety tips: Always start with properly frozen, high-quality crab legs from a trusted source, and keep them frozen until you place them in the slow cooker. Cook on LOW, not HIGH, so the crab heats evenly and reaches a safe temperature without drying out. The crab mixture should be hot and steaming throughout before serving. Do not leave the crab melts sitting at room temperature for more than 2 hours; keep the slow cooker on WARM if serving over time, and refrigerate leftovers within 2 hours in a shallow container. Reheat leftovers gently on the stove or in the microwave until hot all the way through, and enjoy within 1 to 2 days for best quality.