Can coconut milk or creme de coconut be used in recipes in place of whole milk?
Be careful. Milk contains fats that may be necessary for some recipes to work. It also contains proteins that react with eggs, flours, etc. Coconut milk and creme de coconut are entirely different food products and won’t react chemically the same way. If all you needed the milk for originally was moisture then the substitution may be fine. I’d experiment first when it didn’t matter if it fails.