Sweet Potato Biscuits - Today's Parent

Ingredients

• 1 cup whole wheat flour
• 1 cup all-purpose flour
• 1 1/2 tsp baking powder
• 1/2 tsp salt
• 1/4 tsp baking soda
• 1/2 cup cold, unsalted butter
• 1/4 cup buttermilk
• 2 tbsp light brown sugar
• 1 cup cooked sweet potato, mashed
• 1 egg, beaten
• 2 tsp turbinado sugar, optional