Add peanut butter, coconut milk, red chili paste, fish sauce and sugar.
Stir meatballs and sauce to combine.
Cook on HIGH 2-4 hours or on LOW 4-6 hours.
Stir meatballs and sauce to combine.
Cook on HIGH uncovered an 30 minutes to allow sauce to thicken.
Notes
TIP: I like to make this recipe in this slow cooker – it comes in 4, 6 or 8 quart options – or using the slow cooker function of my Instant Pot. If using your Instant Pot, you’ll want to use the tempered glass lid instead of the top that comes with it and is used for pressure cooking.TIP: Don't worry about the coconut milk fat solids that don't mix well. As they are heated, they will melt and form a sauce which you can easily stir later.Adapted from Slow Cooker Meatballs in Peanut Chile Sauce.