**Cake
2 1/4 cups all-purpose flour
1 1/2 teaspoons baking soda
Pinch salt
1 cup buttermilk
1 tablespoon white vinegar
1 teaspoon vanilla extract
2 large eggs
2 tablespoons natural cocoa powder
2 tablespoons red food coloring
12 tablespoons (1 1/2 sticks) unsalted butter, softened
1 1/2 cups granulated sugar
**Frosting
16 tablespoons unsalted butter, softened
4 cups confectioners' sugar
16 ounces cream cheese, cut into 8 pieces, softened
1 1/2teaspoons vanilla extract
Pinch salt