Add flour, sugar, baking powder, and salt to a mason jar or another airtight container. Store in a cool dry place until ready to use!
To Bake Cake or Cupcakes
Pre-heat oven to 350 degrees.
Add softened butter into the bowl of a stand mixer and mix for a couple of minutes on medium.
Add dry Mix to butter and mix for another minute.
Add remaining ingredients: milk, eggs, vanilla, and oil and mix for another minute or two on medium high until a batter forms.
Separate batter evenly into two round 9 inch pans, or one 9 x 13 pan and bake for 20-25 minutes. If making cupcakes, bake for 15-20 minutes. Let cool completely and then frost and enjoy!
Notes
*Be sure to measure by scooping flour into measuring cup, do not scoop with measuring cup.Store at room temp for up to a month and in freezer for 3.