The jig is up! I have made the original antebellum Natchez recipe for years. For the past two or three years, I have made it with Duncan Hines Walnut Brownie Mix (family size). Taste about the same. So, here is the shortcut recipe:
Bake Duncan Hines Walnut Brownies (family size). according to package directions for 9x13 pan. During last two or three minutes of cooking, sprinkle 1/2 bag miniature marshmallows over top of brownies and return to oven. (ONLY A COUPLE OF MINUTES.) Have frosting prepared to pour over hot brownies.
1/2 stick margarine, softened
1 tsp. vanilla
1/3 cup cocoa
1 box powdered sugar
1/2 cup evaporated milk
1/2 cup chopped walnuts
Mix and pour over warm cake. Allow to cool completely, uncovered. Don't be alarmed, this will look melted but will set up as it cools. – From the kitchen of Jeanette Hill Bradsaw.