Cakes: Beat the eggs in a large bowl. Add 3 tablespoons of sour cream, the chopped red pepper, the chopped green onion, 3 teaspoons of parsley, a dash of hot sauce, the croutons, and the lemon juice.
Add the crab and shrimp to the mixture. Form the mixture into 6 to 8 cakes. Dip each side of the cake into the breadcrumbs.
Heat the oil and fry each cake until golden brown (approximately 5 minutes per side).
Sauce: Thoroughly combine 1 cup of sour cream, 3-4 drops of hot sauce, horseradish, ketchup, and 1 teaspoon parsley in a medium bowl. Serve on top of crab and shrimp cakes.