Perfect Apple Pie Muffin Recipe by Perfect Apple Pie Muffin RecipeTopping: 1/2 cup of brown sugar 1/3 cup of flour 1 teaspoon of cinnamon 2 tablespoons of melted butter Batter: 2 1/4 cups of flour 1 teaspoon of baking soda 1 egg 1 cup of buttermilk or 1 teaspoon of vinegar in 1 cup of milk 1/2 cup of butter melted 1 teaspoon of vanilla 1 1/2 cups of brown sugar 2 cups of chopped apples 1/2 teaspoon of saltTopping: Mix the ingredients until mixture forms crumbs Batter: Whisk together egg, buttermilk, butter, and vanilla Stir in sugar Without mixing add flour, baking soda, salt, and apples Stir until combined Do not over mix Spoon into muffin cups Sprinkle with the topping Bake at 375 degrees F for 20 minutes or until firm to the touch