To prepare a vanilla frosted fudge cookies baked goods recipe, first you need to prepare your ingredients. First, you'll need your butter, sugar, eggs, vanilla, and buttermilk. Then, add your dry ingredients to the wet ingredients and mix them together until they're well combined. Next, pour your batter into your greased and floured 9x9x2-inch pan and bake it for 20 minutes at 325 degrees F. Remove the pan from the oven and let it cool for 5 minutes before you cut it into squares.