Ingredients
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3/4 cup rice flour
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1/4 cup potato starch, plus
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2 tablespoons potato starch
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2 tablespoons tapioca flour
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1/4 teaspoon xanthan gum
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2 teaspoons baking powder
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1/4 teaspoon salt
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3/4 cup brown sugar
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1/3 cup white sugar
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1/4 cup buttermilk
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1 tablespoon vegetable oil
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2 teaspoons vanilla
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1/2 cup chopped walnuts
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1/4 cup icing sugar
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1 egg
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1 cup mashed ripe banana (2 bananas)
Instructions
- Preheat oven to 350 degrees.
- Grease a 9 inch square pan with shortening or spray with vegetable oil spray.
- In a small bowl, whisk together the flour, xanthan gum, baking powder, and salt. Set aside.
- In the bowl of your mixer, beat together the mashed banana and both sugars until blended.
- Add the buttermilk, egg, oil, and vanilla. Beat well.
- Stir in the dry ingredients until just blended (do not beat!)Fold in the nuts.
- Spoon the batter into the prepared pan.
- Bake for 25-30 minutes or until a tester comes out clean. Remove from the oven and keep the cake in the pan.
- Stir together the icing sugar and liquid until just thick enough to drizzle well.
- Drizzle in a zigzag pattern over the cooling cake.
- When cold, cut the cake into 12 bars.