To prepare a gluten free cinnamon sugar teacake recipe, first you need to prepare the ingredients. First, you will need the following ingredients: 1 cup rolled oats 2 tablespoons butter 2 teaspoons cinnamon 1 teaspoon vanilla 2 eggs 1 tablespoon vanilla 1/2 teaspoon cinnamon Instructions: Preheat the oven to 350 degrees F. Line an 8 x8-inch baking pan with foil and set aside. In the bowl of an electric mixer, cream together the butter and sugar until light and fluffy. Add the eggs and vanilla and mix until combined. Pour the batter into the prepared pan and bake for 20 minutes. Remove the pan from the heat and allow the cake to cool for 5 minutes before cutting into squares and serving.