Cake Mix "Up-Sizer"

Directions

1. 1
   In a clean, dry bowl combine; flour, sugar, baking powder, and baking soda. Whisk all ingredients together and store in a clean, dry mason jar.
2. 2
   When you wish to increase a 15.25-ounce cake mix to 18.25 ounces, add three ounces of this mix (6 tablespoons) to your existing cake mix.
3. 3
   Some mixes may require more than three ounces of mix to make them 18.25 ounces.