Mix 1 c hot water and ½ c cocoa together, set aside
Mix 3 c gluten-free flour blend, 2 c sugar, 2 eggs, 1 c buttermilk, 1 c oil, 1 tsp baking soda, 1 tsp baking powder, 1 tsp salt, and 2 tsp vanilla slowly and thoroughly
Pour in chocolate mixture and mix well
Pour into greased and floured bundt pan
Bake at 350°F for 35-40 minutes until a toothpick comes out clean
Turn onto cooling rack or plate
For icing: boil together ½ c butter, 4 Tbsp cocoa, and 6 Tbsp milk or water
Mix in 3 ¾ c powdered sugar and 2 tsp vanilla
Pour warm icing over warm cake all at once
