In a small bowl, combine the flour, baking powder, salt and cinnamon. Whisk to break any clumps.
In a separate bowl, combine the oil, eggs, sugar, buttermilk and vanilla. Mix well.
Pour the dry ingredients into the wet ingredients and mix just until combined.
In a small mixing bowl, combine the sugar, cinnamon and butter, cutting it together with a fork until it resembles coarse crumbs.
Spray 2 muffin pans with cooking spray or line with standard muffin cups. Fill 14-16 muffin cups half full of batter.
Sprinkle half of the cinnamon-sugar mixture on over the muffin batter. Use the remaining batter to fill the muffin cups the rest of the way. Sprinkle the remaining cinnamon sugar butter mixture on top of the muffins.
Bake for 5 minutes, then reduce the oven temperature to 350ºF (without opening the oven) and bake for an additional 11-12 minutes, or until the center of the muffin bounces back when you touch it. If you do the toothpick test, there should be a few moist crumbs on the toothpick.
Allow the muffins to cool for 5 minutes, then remove them from the pan and allow them to cool on a wire rack.
*You can use vegetable oil, melted butter, melted coconut oil or melted shortening.
Setting the oven temperature to a high temperature initially helps the muffin form a beautiful dome on top.
Buttermilk Substitute We like to use store bought buttermilk because it is thick and rich. If you need to make your own buttermilk, put 1 teaspoon vinegar into a 1-cup measuring cup, then fill it the rest of the way with half and half cream. Allow it to sit for a few minutes to thicken. Stir, then add to the recipe. You can use regular milk to make buttermilk, but the higher the milk fat content, the better this recipe will taste.
Refer to the article above for more tips and tricks.
The calories shown are based on the recipe making 16 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. **