Smash garlic cloves with the flat blade of your knife and remove peel.
Soak skewers in water.
Combine peanut butter, coconut milk, soy sauce, garlic, lime juice, brown sugar, ginger, and red pepper flakes in small saucepan.
1/2 cup creamy peanut butter, 1/2 cup coconut milk, 1/4 cup soy sauce, 4 cloves garlic, 3 tablespoons lime juice, 2 tablespoons brown sugar, 3/4 teaspoon fresh grated ginger, 1/2 teaspoon red pepper flakes
Cook over medium heat, stirring, until smooth. Cool to room temperature.
While sauce cools, cut chicken into 1 inch strips. Place in a container, then cover with half the cooled sauce. Be sure the garlic cloves are with chicken.
2 pounds chicken breasts
Reserve remaining sauce for dipping.
Marinate two to three hours.
Preheat grill to medium heat, then thread onto skewers.
Oil grill, then cook chicken over medium or so for 5 minutes per side, turning once.