Preheat oven to 350F and butter and flour your muffin pan. I did not use muffins liners, but you can if you want.
Blend the sugar and cinnamon together well in a small bowl and set aside.
Whisk the flour, baking powder, and baking soda in another bowl and set aside.
Cream the butter and brown sugar until fluffy, scraping down the sides of the bowl as needed.
Beat in the eggs, one at a time. Blend in the vanilla. Scrape down those sides!
Alternately add the flour mixture and buttermilk to the bowl, beginning and ending with the flour. Mix just until well combined. Finish with a silicone spoonula to scrape down the side and bottom of the bowl and give it a final stir.
Using about half the batter, spoon a small scoop of batter into the bottom of 12 muffin cups. Make sure the batter covers the bottom of the muffin cup and then top with a teaspoon or so of cinnamon sugar. Note: you don't want the cinnamon sugar touching the bottom of the muffin cup or it will make the muffin stick.
Scoop the remaining batter on top of each muffin and then top with another teaspoon of cinnamon sugar.
Bake for about 20 minutes until the muffins are risen and golden.
Cool for a few minutes before removing them from the pan to a rack. Note: loosen the edges with a blunt offset spreading knife or similar before trying to remove the muffins.
Nutritional information is provided as a courtesy and is an estimate only. This information comes from online calculators. Although The View from Great Island attempts to provide accurate nutritional information, these figures are only estimates.
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