Follow these steps to create your Classic Christmas Red Velvet Cupcakes with Vanilla Frosting:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Line a muffin tin with cupcake liners.
2. Mix Dry Ingredients: In a large bowl, sift together the flour, sugar, baking soda, salt, and cocoa powder.
3. Combine Wet Ingredients: In another bowl, whisk together the vegetable oil, buttermilk, eggs, red food coloring, vanilla extract, and white vinegar until well blended.
4. Combine Mixtures: Gradually add the wet ingredients to the dry ingredients, mixing until just combined. Avoid overmixing.
5. Fill Cupcake Liners: Spoon the batter into the prepared cupcake liners, filling each about two-thirds full.
6. Bake: Place in the preheated oven and bake for 18–20 minutes, or until a toothpick inserted in the center comes out clean.
7. Cool: Remove from the oven and allow the cupcakes to cool in the pan for 10-15 minutes before transferring them to a wire rack to cool completely.
8. Make the Frosting: In a large bowl, beat the softened butter until creamy. Gradually add powdered sugar, mixing well. Add vanilla extract and enough milk or cream to reach your desired consistency.
9. Frost the Cupcakes: Once the cupcakes are completely cool, use a piping bag or a spatula to frost each cupcake generously with vanilla frosting.
10. Decorate: Optionally, add festive sprinkles or decorations to enhance the holiday spirit.