2 cups granulated sugar 1/2 cup evaporated milk 1/2 cup cooked, mashed yams 1 cup pecans 1/4 cup butter 1/2 teaspoon vanilla extract
Place sugar and milk in a heavy 2-quart saucepan and bring to a boil. Add yams. Cook until mixture reaches 235 degrees F (soft-ball stage). Remove from heat and add pecans, butter and vanilla extract. Let cool.
Beat and pour into a buttered 8-inch square dish. Allow to completely harden.