This recipe can be used for almost any flavor cupcake. This recipe works for vanilla, almond, lemon, orange, cherry, and many others - any flavor in which you will just use an extract to flavor the cupcake. (It doesn’t work for chocolate or peanut butter or carrot cake because those flavors require more than just an extract.)
98 grams peanut oil
115 grams white chocolate
104 grams white rice flour
33 grams brown rice flour
30 grams potato starch
13 grams tapioca starch
4 grams milk powder
1 teaspoon baking powder
½ teaspoon xanthan gum
½ teaspoon salt
⅛ teaspoon baking soda
98 grams sugar
2 eggs
⅓ cup sour cream
2 teaspoons flavoring extract
Preheat the oven to 325 degrees. Line a 12-cavity muffin pan with cupcake liners.
Heat the oil and white chocolate until the white chocolate melts and you can stir it into a homogeneous liquid. Set aside and let it cool.
Combine the white rice flour, brown rice flour, potato starch, tapioca starch, milk powder, baking powder, xanthan gum, salt, and baking soda. Stir and set aside.
Whisk the sugar, eggs, sour cream, and extract in a large bowl. Once it is well combined, add the liquid white chocolate mixture and mix well. Finally, add the dry ingredients. Whisk until the mixture is smooth.
Divide the batter evenly among the 12 cupcake cavities. Bake for 20 - 22 minutes.
2 sticks (8 ounces) unsalted butter at room temperature
2 pounds powdered sugar
2 teaspoons flavoring extract
½ cup milk
Using the whisk attachment on an electric mixer, mix the butter and about half of the powdered sugar on low speed until the sugar is absorbed. Add the extract and blend until well combined. Add about half of the milk and continue blending until the mixture is well combined. With the mixture on low, gradually add the remaining powdered sugar. (If the mixture is dry, add milk a tablespoon at a time.) Once the frosting has reached a good consistency and is well combined, turn the mixture up to high speed and let the frosting whip for 5 minutes. This is key to a fluffy frosting.
Once the cupcakes have cooled, frost with the buttercream frosting.