Preheat oven to 350
In large mixing bowl stir the flour, sugar, baking powder, salt, and nutmeg.
2 cups all-purpose flour, ¾ cup sugar, 2 teaspoons baking powder, ½ teaspoon salt, ¼ teaspoon nutmeg
In a separate bowl, whisk the egg with the milk. Slowly add melted butter and vanilla (see Notes).
1 egg, 1 ¼ cups milk, 6 tablespoons butter, 1 teaspoon vanilla
Pour the egg mixture into the flour mixture and stir until incorporated.
Spray a 12-tin muffin tin with cooking spray.
Spoon the batter into the muffin tins, about ⅔ full.
Bake for 20 minutes or until lightly golden brown.
While the muffins are cooling make the topping. In small mixing bowl, mix together the sugar and cinnamon. Keep the melted butter in a separate bowl.
⅔ cup sugar, 2 teaspoons cinnamon
Take each warm muffin and place it upside down (top down) dipping it into the melted butter, then into the cinnamon sugar mixture. Place on plate and repeat with remaining muffins.
5 tablespoons butter