Mix all ingredients together in a small bowl. Add more heavy cream or water to thin the mixture, if necessary.
Preheat oven to 350 F.
Mix ingredients together with a wire whisk until just combined. Don’t over mix.
Spray a 6 slot donut pan with cooking spray (avocado oil or coconut is great low-carb and Keto donuts).
Fill a piping bag with the batter. Divide mixture between the 6 donut slots.
Bake for 15 minutes, or until toothpick inserted comes out clean.
Cool completely inside the pan. Carefully remove from the pan. Drizzle the glaze over the donuts.
Keep in the fridge in an air-tight container for up to 1 week.