2 6 oz. Alaskan Halibut Fillets (or any other white fish)
1 tablespoon lemon juice
1/2 cup buttermilk
1 teaspoon kosher salt
1 teaspoon freshly ground black pepper
1 cup finely-crushed unsalted, saltine crackers
1/4 cup panko bread crumbs
1/2 tablespoon Old Bay seasoning
Oil for frying
2 brioche buns
2 Cheddar cheese slices
Dill pickle slices (to taste)
Tartar Sauce (made ahead and put in the fridge for at least 30 minutes prior to use)
Cut the fish fillets into 3-4 ounce pieces. Squeeze the lemon juice over the fish fillets. Combine the buttermilk, salt and pepper in a shallow bowl. On a large plate, toss together the crushed saltine crackers, panko bread crumbs and Old Bay seasoning.
In a large Dutch oven, heat 2 inches of oil until a deep-fry or candy thermometer reads 350°F. One at a time, dip a piece of fish in the buttermilk, shake off any excess and dip into the saltine mixture and set on another plate or small baking sheet. Repeat with the rest of the fish pieces. Place a few of the fish pieces in the oil being careful not to overcrowd the pot. Fry for 2 minutes, or if the fillets are taller than the oil, fry for 2 minutes on each side or until golden brown. Use tongs to transfer the fish to a wire rack placed over a baking sheet or something similar to catch any dripping oil and quickly season with a sprinkling of salt while the fish is still hot.
While the fish is cooking, preheat the broiler or a toaster oven. Place the tops and bottoms of the brioche buns on a baking sheet and place a slice of cheese on each of the bottom buns. Broil for 2-3 minutes or until the cheese has slightly melted and the buns are warm and toasty.
To assemble the sandwiches, top the bottom bun with pickle slices, the halibut, and spread the top bun with tartar sauce and top your sandwich. Enjoy!