In a food processor or in a large bowl with a wooden spoon, mix together the oat flour, almond flour, coconut sugar, baking powder, nutmeg, cinnamon, all spice, ginger, and cloves.
1 ⅔ cup gluten-free oat flour, 1 cup almond flour, ½ cup coconut sugar, 1 tablespoon baking powder, 1 teaspoon nutmeg, 1 teaspoon cinnamon, ½ teaspoon all spice, ½ teaspoon cloves, ¼ teaspoon ginger