Line a cupcake pan or mini muffin tin with muffin liners or lightly spray with nonstick spray
In a large bowl, dump the dry cake mix and the can of pumpkin puree
Stir together using a wooden spoon or a hand mixer until fully combined
Use a regular-sized ice cream scoop to portion batter into each liner
Bake in your preheated oven for 20–22 minutes (or about 12–15 minutes for mini muffins), or until a toothpick inserted in the center of the muffin comes out clean
Cool on a wire rack for best results
Notes
Serving Size Note: This will make about 12 regular-sized muffins or about 24 mini muffins.