Combine all dry ingredients in a large bowl and the wet ones in a small bowl. Whisk both bowls up and pour the wet item bowl into the dry item bowl.
Fold and whisk everything together. Stir in the butterscotch chips.
Find some muffin tins with the largest muffin size. Have muffin wrappers in the tin ready. Using an ice cream scoop, scoop all the goodness into the muffin tins. Sprinkle the tops with a little brown sugar.
Bake all the tins for 30 minutes, or until the muffins have risen at least an inch or less from the surface of the tin and the tops are browned. Let all that cool for just a few minutes and serve. They can be refrigerated for at least a week, and frozen for however you want.
Serving Tips
Try giving some as a gift.
If you need less, you can just make a third or half of the recipe.
Source: Sunny Street Cafe copycat recipe "Butterscotch Muffins."