Spray 8-inch or 9-inch round cake pans well with nonstick spray.Mix almond (or soy) milk and vinegar, let sit a few minutes until curdled.Sift together flour, sugar, baking soda, cinnamon and salt.Add vegetable oil, milk mixture, and vanilla extract; whisk until batter is smooth.
Bake about 30 minutes, until cake begins to pull away from sides and toothpick inserted in the center comes out clean. Let sit for a few, invert, and cool on rack.
Once the cake is fully cooled, cream together non-dairy butter or palm shortening, vanilla, cinnamon and powdered sugar to taste and desired consistency, and frost! Or, use this Fluffy Gluten-Free & Vegan Frosting recipe, and add a touch of cinnamon. Dip a spatula in very hot water for a good smooth effect.
Notes
Garnish with Turbinado sugar, cinnamon and/or cinnamon sticks.