Black Pepper Cake

Name: Black Pepper Cake
Cuisine: American
Ingredients: Butter and flour, for the mold; Butter and flour, for the mold; ¼ pound plus 4 tablespoons unsalted butter; ¾ cup packed dark brown sugar; 1 cup granulated sugar; 3 eggs; 1 teaspoon vanilla extract; 2¼ cups all-purpose flour; 1 teaspoon baking powder; ½ teaspoon salt; ½ teaspoon ground cloves; ¼ teaspoon ground ginger; ¾ teaspoon cinnamon; 2 teaspoons freshly milled black pepper; 1 cup buttermilk