Spear sirloin, pineapple, green peppers and onions alternately on heat-proof skewers.

In a blender, combine remaining ingredients and whirl until smooth. Brush mixture thickly over both sides of skewers.

Place skewers side by side in shallow pan; let stand at room temperature 1 hour, turning often (or refrigerate for at least 4 hours). Arrange skewers on grill using indirect heat 8 inches away from hot coals; broil for 8 to 10 minutes on each side or until beef reaches desired degree of doneness. Brush with marinade every few minutes during cooking.

Serve with remaining heated marinade.

Makes 6 servings.