Grilled Peanut Butter Ham 

1 cup chicken broth 
1/2 cup peanut butter 
1/4 cup honey 
1 small onion, grated 
1 clove garlic, chopped 
2 teaspoons soy sauce 
1 teaspoon gravy base (recommended: Kitchen Bouquet) 
1/4 teaspoon black pepper 
2 center cut ham slices (1 1/2 inches thick)

In a blender, combine the broth, peanut butter, honey, onion, garlic, 
soy sauce, gravy base and pepper. Put the ham in a shallow glass dish, 
pour the marinade over it, and marinate for 3 to 4 hours in the refrigerator. 
Prepare a charcoal fire. Remove ham from marinade and cook approximately 
15 minutes per side over glowing coals. Carve into 1-inch thick slices.