⭐ Coconut Milk + Lemon Juice (Best Dairy-Free Option)
1 cup full-fat coconut milk + 1 tablespoon lemon juice (let sit 5 minutes) Quick tip: Dairy-free and acidic, but imparts a subtle coconut flavor that changes the dish’s profile.
Full-fat coconut milk provides creaminess similar to dairy milk, and the addition of lemon juice introduces acidity to replicate buttermilk’s tang. This combination can tenderize the potatoes and add moisture.
Let the mixture sit for 5 minutes to allow slight curdling. Use this substitute if dairy is to be avoided, but be mindful that the coconut flavor will be noticeable.
The final mashed potato topping will be creamy and tangy but with a distinct coconut undertone, which may not be traditional but can add an interesting twist to the dish.