1/8 teaspoon each white pepper, cayenne pepper and black pepper
18 uncooked large shrimp (about 3/4 pound)
12 sea scallops (1-1/2 pounds)
In a small saucepan, melt butter. Stir in seasonings; set aside and keep warm. Peel and devein shrimp, leaving tails on. On six metal or soaked wooden skewers, alternately thread shrimp and scallops.
Using long-handled tongs, moisten a paper towel with cooking oil and lightly coat the grill rack. Grill seafood, covered, over medium heat or broil 4 in. from the heat for 3-5 minutes on each side or until shrimp turn pink and scallops are firm and opaque, basting occasionally with butter mixture.