Adapted from Amanda's Cookin'
Preheat the oven to 375°F.
In a medium bowl, whisk together the flour, sugar, cocoa, baking powder and salt.
In a large bowl, whisk together the milk, oil, eggs and vanilla. Add the dry ingredients and chocolate chips and stir just until well blended.
Fill paper-lined muffin cups and bake for 20-25 minutes, or until domed and springy to the touch.
Serving Size Makes 1 dozen muffins.