LotR Obsession

1 - Preheat oven to 350°. Line bottoms of 2 greased 9-in. round baking pans with parchment; grease paper. 2 - In a large bowl, cream butter and sugar until light and fluffy. Add eggs, 1 at a time, beating well after each addition. Beat in vinegar and vanilla. In another bowl, whisk flour, baking cocoa and baking soda. 3 - In a small bowl, mash blackberries; add 1/3 cup to a medium bowl. Reserve remaining for frosting. 4 - Add buttermilk and food coloring to the bowl with the 1/3 cup blackberries. Add flour mixture to creamed mixture alternately with blackberry mixture, beating well after each addition. 5 - Bake 33-36 minutes or until a toothpick inserted in center comes out clean. Cool 10 minutes before removing from pans to wire racks to cool completely. 6 - In a large bowl, beat butter, confectioners’ sugar, vanilla and enough milk to reach a spreadable consistency. 7 - Place one cake layer on serving plate; level with a serrated knife. Spread frosting over top. Cut 1 cup blackberries in half; sprinkle over frosting. Level second cake layer; place upside down over berries. Frost top and sides of cake with remaining frosting. Garnish with remaining 1 cup of blackberries.