These simple brown sugar cupcakes are moist, flavorful, and comforting. Topped with smooth and fluffy brown sugar buttercream, this cupcake recipe is definitely a crowd pleaser and bakery worthy!
Preheat the oven to 350°F/180°C and line a cupcake pan with 12 liners.
In a large bowl, combine the brown sugar, flour, baking powder, cinnamon, and salt. Whisk until the ingredients are evenly distributed.
¾ cup brown sugar, 1 ¼ cup all purpose flour, 1 ½ teaspoon baking powder, ½ teaspoon cinnamon, ½ teaspoon salt
Add the oil, egg, vanilla, and buttermilk. Stir with a rubber spatula until just combined with no dry streaks.
¼ cup vegetable oil, 1 large egg, 2 teaspoon vanilla extract, 1 cup buttermilk
Fill each cupcake liner ⅔ of the way full. Do not overfill!
Bake for 18-20 minutes or until a toothpick inserted in the center comes out clean.
Remove the cupcakes from the oven, let cool for 5 minutes, and transfer them to a wire cooling rack. Make sure the cupcakes are completely cool before frosting.
Buttercream
With a mixer, cream the butter and brown sugar on high for 8-10 minutes. Mix in the vanilla and salt on low.
½ cup unsalted butter, ¼ cup brown sugar, 1 teaspoon vanilla extract, ¼ teaspoon salt
Beat in 1 cup powdered sugar on low for 3 minutes and then beat in the remaining cup for 3 more minutes. Mix in milk until the desired consistency is reached.
2 cups powdered sugar, 1 tablespoon milk
Prepare a piping bag with a large piping tip, fill with buttercream, and frost the cupcakes. Enjoy!
Notes
Bring the butter, buttermilk, and egg to room temperature to make sure everything mixes evenly.Measure the flour with a kitchen scale for accurate weight. If you don't have one, gently spoon the flour into the measuring cup without packing it down.Storage: Store in an airtight container at room temperature for up to 2 days. Refrigerate for an additional 3 days after that.Freezing: Freeze unfrosted cupcakes on a baking sheet for 2 hours our until frozen solid. Store in a freezer bag in the freezer for up to 3 months.When ready to enjoy, remove from the freezer and let thaw at room temperature for a couple hours or in the refrigerator overnight. Frost and serve.