When is a muffin a cupcake?

It’s Friday. It’s raining!

Not a pretty forecast.

So I made Orange Sour Cream Chocolate Chip Muffins.

***My changes to the above recipe: I used 1 1/2 cup white whole wheat flour and 1/2 cup bread flour, plain non-fat yogurt for all but 1 T of sour cream, decreased sugar by 1/8 cup.