In small grill-safe saucepan, combine all ingredients.
Remove cooking grid.
Place pan on lava rock grate, arranging rocks around pan.
Cook at HIGH with hood open until mixture boils.
Reduce heat to LOW.
Simmer for 1 minute, stirring constantly.
Remove from heat; cool slightly.
Pour over poultry, beef or lamb.
Cover dish or close bag.
Refrigerate for at least 8 hours.