- Cut beef into 1-1/2-inch cubes. Place in small bowl.
- Thoroughly blend teriyaki sauce, peanut butter, brown sugar, garlic powder and pepper sauce. Pour mixture over beef, turning pieces over several times to coat thoroughly. Let stand 1 hour, turning pieces over occasionally.
- Remove meat from marinade and reserve marinade.
- Thread beef and pineapple chunks alternately on 4 skewers.
- Arrange skewers in single layer on 12-inch round glass or ceramic platter. Brush with reserved marinade.
- Microwave on High for 2 minutes. Turn skewers over and rotate positions on platter, moving center skewers to edge. Brush with marinade.
- Microwave on High 2 minutes longer, or to desired degree of doneness.