Preheat oven to 400°. Line a muffin pan with paper liners.
In a large bowl, whisk together the milk, oil, egg, sugars and vanilla. 1 cup whole milk , 1/2 cup vegetable oil , 1 large egg, 1/2 cup granulated sugar, ¼ cup brown sugar, 2 teaspoons vanilla extract
Add the flour, baking powder and salt. Whisk gently just until combined. 2 cups all-purpose flour, 1 tablespoon baking powder, 1/2 teaspoon salt
Fold in chocolate chips and shaved chocolate. 3/4 cup miniature semisweet chocolate chips, 2 ounces high quality dark chocolate bar
Fill the prepared muffin cups almost full (This will make 11-12 muffins.) Sprinkle coarse sugar on top of the unbaked muffin batter. Coarse sugar
Bake in the preheated oven for 15-17 minutes or until a toothpick comes out with just a few moist crumbs. Cool for 5 minutes before removing to a wire rack to cool completely.
Notes
Refer to the article above for more tips and tricks.The calories shown are based recipe making 12 muffins, with 1 serving being 1 muffin. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information. **