Nutella Stuffed Cinnamon Sugar Muffins

Preheat oven to 400 degrees F. Line a 12-cup standard muffin tin with paper liners; set aside.

In a large bowl, combine flour, sugar, cinnamon, nutmeg, baking powder, and salt.

In a large glass measuring cup or another bowl, whisk together milk, vegetable oil, egg, and vanilla. Pour mixture over dry ingredients and stir using a rubber spatula just until moist.

Scoop a spoonful of batter evenly into the muffin tray. Drop 1 teaspoon Nutella into the center of each cup. Top with remaining batter to completely cover the filling.

Place into oven and bake for 13-15 minutes, or until a tester inserted in the center comes out clean.

To make the cinnamon sugar, combine the cinnamon and sugar.

When the muffins are done, cool for 10 minutes and dip the muffin crown into the melted butter, and then into the cinnamon-sugar mixture.

Let cool on a wire rack.