Cut the chicken into 1.5cm/0.5" cubes. Thread onto skewers - 4 to 5 pieces per skewer.
Combine kicap manis and butter, then brush onto chicken.
Cook the skewers on a grill in the oven or on the stove in a large non-stick fry pan.
To serve, garnished with onion wedges and with lime wedges and peanut sauce on the side.
Peanut Sauce
Heat oil in a small saucepan over medium heat. Add garlic, onion and chilies (optional) and cook for 3 minutes until onion is translucent.
Turn heat down, then add peanut butter, coconut milk, kicap manis, soy sauce and salt. Simmer for 10 mins, stir occasionally.
Use a handheld stick to puree. Stir through crushed peanuts and lime juice and simmer for 2 minutes. Allow to cool slightly before serving or to room temperature - it will thicken.
Want to cook this with your team? D'Open Kitchen runs hands-on cooking team-building classes in Singapore.