My grandmother gave me this recipe. She usually makes it around the time of year when the Girl Scouts come by with their Thin Mint cookies! The pie has the texture of a brownie, with a very mild, refreshing flavor of mint. If you'd like a stronger mint flavor, I would replace the vanilla extract with peppermint extract. The inside stays very moist and gooey! I usually use walnuts, but any nuts you are partial to in brownies would work just fine. Please note that the pie should be refrigerated for 3-4 hours before serving, and this is not included in the cooking/preparation time.