Cinnamon Chip Muffins

Preheat oven to 375℉. Line a muffin pan with liners and spray with non-stick spray.
Combine the dry ingredients together in medium-sized mixing bowl. Mix until well combined.
2 c all-purpose flour, ¼ c cornstarch, 1 teaspoon baking powder, ½ teaspoon baking soda
Combine the sugars and wet ingredients together and whisk until well combined, being sure to break up the egg yolks.
¼ c brown sugar, ¼ c granulated sugar, 2 tablespoon vanilla extract, 2 eggs, ⅓ c vegetable oil, ⅔ c buttermilk
Add the dry ingredients to the wet ingredients and continue to mix until well combined.
Fold in the cinnamon chips. The batter will be on the thicker side. This is what you're looking for.
1 ½ c cinnamon chips
Fill the muffin tins about ¾ full. Bake in the oven for 18-20 minutes or until a toothpick inserted in the center comes out clean.