Red Velvet Cupcakes

Preheat the oven to 350 degrees. Line a cupcake pan with papers. In a medium bowl, sift together flour, cocoa, baking soda, baking powder, and salt. In a large bowl, cream together sugar and butter. Beat in eggs, 1 at a time. Alternatively add flour mixture and buttermilk. Beat in food coloring and vinegar, then add vanilla. Fill muffin papers ⅔ full. Bake about 16 minutes or until wooden toothpick inserted in the center comes out clean. Cook on a rack. For frosting: In a large bowl, combine the cream cheese and butter. Beat in confectioners sugar until fluffy. Beat in vanilla and stir in pecans. Frost the cupcakes.