Outdoor Cooking Magic

In covered grill, arrange medium coals around a drip pan.  There should be medium-low heat over the drip pan.  Place meat on grill rack over drip pan, but not over the coals.  Cover grill and grill for about 1 1/2 hours or until meat thermometer reaches 140 degrees.

In a bowl, gradually blend orange juice into peanut butter, beating with wire whisk until smooth.  Brush roast with mixture.  Grill 30 minutes more or until thermometer reaches 160 degrees, brushing occasionally with peanut butter mixture.