Cocoanut Brownies: Vintage Ad & Recipe

Lately I've been enjoying Vintage Chocolate ads and posters, especially when they include recipes. This one for Cocoanut Golden Brownies is from the 1950s. Unfortunately Welch's Cocoanut Bars are no longer made. The recipe says you can't substitute any other bar; however, that's just a 50s advertising ploy. You can substitute a Mounds Bar. If you like a moister brownie, you can add a little more shortening! The recipe calls for butter or margarine--margarine being very popular in the 50s. I only use butter!