Preheat oven to 350 degrees F. Make batter as directed on the back of your cake mix box.
Place liners inside your mini cupcake pan. Spoon in batter 3/4 of the way full, no more.
Bake on the middle rack of your own for 10-12 minutes. Bake time will depend on how full your liners are filled, oven temp and type of mix you use.
Test at 10 minutes with your finger touching the center of one. If it springs back it is done. Remove from oven and from the pan with a spoon moving them on to a cooling rack so they don't continue baking in the hot pan.