Deviled Crab

Name: Deviled Crab
Ingredients: 5 slices white or whole wheat bread; 10 large blue crabs (or 1½ lb. crabmeat and 8 large crab backs); 2 tbsp. Nature’s Seasons seasoning blend; 1⁄4 cup plus 2 Tbsp. unsalted butter, divided; 1 cup finely chopped celery; 1 cup finely chopped yellow onion; 3⁄4 cup mayonnaise; 1⁄4 cup fresh lemon juice; 2 tbsp. Worcestershire sauce; 1 1⁄2 tsp. yellow mustard; Kosher salt and freshly ground black pepper