Preheat and PreparePreheat your oven to 350°F (175°C). Line a 12-cup muffin tin with cupcake liners.
Mix Dry IngredientsIn a medium bowl, sift together the flour, cocoa powder, baking soda, and salt.
Cream Butter and SugarUsing a hand or stand mixer, beat the softened butter and sugar together until light and fluffy (about 2-3 minutes). Add the egg and vanilla extract, mixing until well-combined.
Add Buttermilk, Vinegar, and Food ColoringMix in the buttermilk and vinegar. Gradually add the red food coloring, adjusting to your desired shade of red.
Combine Wet and Dry IngredientsGradually add the dry ingredients to the wet mixture, mixing until just combined. Be careful not to overmix.
Fill and BakeDivide the batter evenly among the cupcake liners, filling each about 2/3 full. Bake for 18-20 minutes, or until a toothpick inserted comes out clean. Allow the cupcakes to cool completely.
Make the FrostingBeat the cream cheese and butter together until smooth and creamy. Gradually add the powdered sugar, one cup at a time, until light and fluffy. Mix in the vanilla extract.
Decorate and ServeOnce the cupcakes are cool, frost them with the cream cheese frosting. Use a piping bag for a professional look or spread with a knife. Garnish with sprinkles or edible glitter for a special touch. Enjoy! 🎉