In a large skillet melt the butter and margarine with the onions, bell peppers, celery, garlic and bay leaves over high heat; saute about 2 minutes, stirring occasionally. Add the Bayou Blast and continue cooking until vegetables are barely wilted, about 5 minutes. Stir in the giblets, stock and Tabsco; cook 5 minutes, stirring frequently. Turn off heat. Add the cornbread, milk and eggs, stirring well. Spoon dressing into a greased 13 x 9-inch baking pan. Bake at 350° until browned on top, about 35 to 40 minutes.