I found this recipe on Spoonful of Sugar Free I halved the recipe and made them into 6 heart shaped muffins.
1/4 cup coconut flour
1/4 cup cocoa powder
1/2 teaspoon baking powder
1/4 tsp pure vanilla powder
1/2 cup milk-substitute (I used rice milk) whisked with 1/2 teaspoon apple cider vinegar to create vegan buttermilk.
1/4 cup peanut butter
1/6 cup dairy-free milk (I used rice milk)
Blend the dates into a paste. Add wet ingredients and stir until well-combined.
Combine all dry ingredients in a separate bowl and stir until lumps are gone.
Combine wet and dry until well combined. Pour the batter into 6 lightly greased or lined muffin trays. Bake for at around 190degC for 15-20 minutes or until a toothpick comes out clean.
For the frosting blend peanut butter and milk until creamy and fluffy.