Ginger and Orange Grilled Shrimp

• 36 large shrimp shelled and deveined
• garlic salt and white pepper
• ¼ cup butter
• 5 garlic cloves minced
• ¼ cup white wine
• 1 cup orange juice
• 2 tsp. orange zest
• 2 tsp. ginger

Season with garlic salt and white pepper in a sauce pan melt butter and add prawn shells and garlic stir until shells are pink and garlic is soft add rest of ingredients bring to boil, remove from heat, and cool skewer and marinate in mixture grill basting with sauce liberally