Preheat oven to 375°. In a large bowl, combine milk, ketchup, Worcestershire sauce and pepper. Add bacon strips, turning to coat. Dip strips in crushed cornflakes, patting to help coating adhere. Place bacon on 2 racks; place each rack on an ungreased 15x10x1-in. baking pan. Bake until golden and crisp, rotating pans halfway through baking, 25-30 minutes.