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Oats and Buttermilk Snack Cake

Ingredients

• 
  1 1/2 cups buttermilk
• 1/2 cup steel-cut oats
• 1/2 cup oat flour
• 1 cup all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 2/3 cup packed brown sugar
• 1/4 cup butter, softened
• 1 1/2 teaspoons vanilla extract
• 1 large egg
• Cooking spray
• 1 tablespoon powdered sugar (optional)

• Preparation

1. Combine buttermilk and oats; cover and refrigerate 8 hours.
2. Preheat oven to 375°.
3. Lightly spoon flours into a dry measuring cup; level with a knife. Combine flours, baking powder, baking soda, and salt, stirring with a whisk.
4. Place sugar and butter in a large bowl; beat with a mixer at medium speed until light and fluffy. Add vanilla and egg; beat until well blended. Stir in oat mixture; beat until well blended. Add flour mixture, beating just until moist.
5. Spoon batter into a 13 x 9-inch baking pan coated with cooking spray. Bake at 375° for 30 minutes or until a wooden pick inserted in center comes out clean. Cool 10 minutes in pan on a wire rack. Cut into squares. Garnish with powdered sugar, if desired.