The first was from Food.com. You can find the original recipe here: Gluten Free Chocolate Cake
I will print it with my variations here:
Easy GF Chocolate Cake
1 1/2 C GF Flour Blend
1 C Cocoa (or 1/2 C cocoa + 1/2 C chocolate chips)
1/2 t baking soda
2 1/2 t baking powder (use 1T total when doubling)
1 1/2 t xanthan gum
3/4 C salted butter (or add 1/2 t salt with unsalted butter)
1 1/2 C organic sugar
3 large eggs
2 T mayonaisse (or 2 yolks)
2 t vanilla
1 1/2 C buttermilk (or sour milk)
Preheat the oven to 350 degrees. Lightly grease the bottom of a 9×13 baking pan. In a medium size bowl, add flour, cocoa, xanthan gum, baking powder, and baking soda and whisk together. In the bowl of your mixer, beat the butter until creamy . Slowly add the sugar and whip until fluffy. Add the eggs one at a time, then mix in mayo. Add the vanilla. Turn the mixer to low and alternately add the flour mixture and the buttermilk. Pour into the prepared pan. Bake for 30-35 minutes until the cake is springy to the touch.
I topped this with a butter cream frosting found here: Butter-cream Frosting
Printable version here: Easy GF Chocolate Cake
The second was from Gluten-Free-Girl herself. She was modifying a recipe from Pioneer Woman.
I followed the recipe as written with the only variation being that I used my flour blend in place of the flours she recommended and I did not use guar gum. I just used the 2 t of xanthan gum the recipe called for. You can find that recipe here: Texas Sheet Cake Gluten Free
For my flour blend, look here: Earthmama's GF Flour Blend
The Easy GF Chocolate Cake recipe works great as a sheet cake or cup cakes. You can make the cupcakes up in advance and freeze them for later.