To the slow cooker, add the onion, ginger, garlic, chicken thighs, peanut butter, coconut milk, chicken stock cube, soy sauce, curry powder and brown sugar. Stir well to combine all the ingredients.
1 brown onion, 1 tbsp ginger, 1 tbsp garlic, 600 g chicken thighs, 3 tbsp peanut butter, 400 ml canned coconut milk, 1 chicken stock cube, 1 tbsp soy sauce, 1 tbsp curry powder, 1 tsp brown sugar