Birthday Cake

So I made a Birthday Cake for the esteemed choir director's birthday.

I don't have a pic yet, his SO is supposed to send me one. I'll edit to add the pic.

I adapted a recipe from The Baker's Dozen Cookbook. For Rich Chocolate Cake.

3 oz unsweetened chocolate
1 cup potato flour
1/2 cup tapioca flour
3/4 cup white rice flour
(or 2 1/4 cups of your favorite blend)
1 tsp Xanthan Gum
1 1/2 tsp baking soda
1/2 tsp salt
2 1/3 cups light brown sugar
1 stick butter, room temp
1 cup sour cream, room temp
3 eggs, lightly beaten
1 tsp vanilla extract
2 tbsp cocoa
1 cup boiling water

Preheat oven to 350 degrees. Line bottoms of two round cake pans with parchment or wax paper.

Dissolve cocoa in boiling water and let cool to room temp. Melt chocolate in a double boiler.

Blend flours, baking soda and salt in a bowl (preferably using a stand mixer with the paddle attachment) Add the brown sugar and blend it in.

Add butter and sour cream. Blend for about two minutes, add the eggs, chocolate and vanilla. Beat at medium high for two minutes, add the cocoa water. Put in pans and put in oven. It will take about 45 minutes to an hour to bake.

Let the cakes cool, turn them out, peel off the paper. and frost with cream cheese icing.

(cream cheese and butter with confectioners sugar- 1 pkg cream cheese, two sticks butter, one bag sugar and glug of vanilla) You could add orange zest or some such thing if you wanted to vary the flavor.

If you want to tweak the flavor of the cake, you can replace the boiling water with coffee. Make more of a mocha cake.