Preheat oven to 325 degrees. Grease and flour three 8 inch pans. I also like to line my pans with circles of parchment or waxed paper.
This recipe uses the Reverse Creaming Method of Mixing.
Add dry ingredients to the bowl of your mixer and mix for one minute to blend (sugar, flour, cocoa, baking soda, baking powder, and salt)
Add butter a few slices at a time and mix until it reaches a crumbly, sandy texture. Be careful not to over-mix beyond "sandy" consistency.
In another bowl, combine sour cream, eggs, milk, and vanilla, and peppermint extract. Using a fork, mix together. This is all of your wet ingredients except for the coffee, it will be added to the batter later.
Set a timer for 1 ½ minutes and SLOWLY add half of your egg mixture to your butter/flour mixture while mixing. Start mixer on low speed then increase to medium for the remainder of the 1 ½ minutes. Do Not Mix Above Medium Speed.
Stop mixer, scrape the sides and bottom of bowl, and add half of the remaining egg mixture. Mix on medium speed for 20 seconds.
Stop mixer, scrape down the sides if necessary, and add the last of the egg mixture. Mix for 20 more seconds on medium speed.
Slowly add HOT coffee and mixing for 30 seconds to blend. Batter will be runny but that is okay!
This recipe makes about 9 ½ cups of batter.Pour into 3 prepared 8 inch pans and bake at 325 degrees for 25 to 30 minutes or until the center of the cake springs back to the touch and a toothpick comes out clean.