Sate Ayam Saus Kacang ala Restoran (Ala Indonesia/Bali)

Bahan-bahan (12 porsi)

• 1 lb / 500g chicken thigh fillets ((skinless and boneless))
• 2 1/2 tbsp kecap manis ((thick sweet soy sauce - see Note 1))
• 1 tbsp unsalted butter (, melted)
• 12 - 14 small bamboo skewers (, soaked in water for at least 30 minutes)
• 1 tbsp cooking oil ((peanut, canola, vegetable))
• 2 g arlic cloves (, minced)
• 1 small or 1/2 large onion (, diced (red, brown, yellow or white))
• 3 birds eye chillis (, sliced (or sub with hot sauce))
• 1/2 cup peanut butter ((smooth or crunchy))
• 1 cup coconut milk ((full fat is better, but light is ok))
• 2 1/2 tbsp kecap manis ((Note 1))
• 1/2 tbsp soy sauce
• 1/2 tsp salt
• 1/4 cup crushed unsalted roasted peanuts ((buy crushed or chop your own))
• 1 - 2 tbsp fresh lime juice
• Crushed peanuts
• Lime wedges
• Sliced shallots/scallions