I found this recipe for Homemade Peppermint Patties and I have to say-- they are amazing! They melt in your mouth, which is delightful. I made them with milk chocolate, not the traditional dark chocolate... mainly because I didn't have any dark in the house and was too lazy to go out and get the right stuff.
I brought them into work for our St. Patty's day celebration last year and got rave reviews. Since I didn't have the recipe with me for my co-workers, I wrote up a variation to the steps. I have posted them here below... and who knows, if you make them, my explanations may be helpful. For the complete recipe, please see In Between Laundry. I did not want to re-print her work without permission!
Directions: Makes @ 100 patties, dependent on size
In a bowl, combine the potatoes, butter, peppermint, and powdered sugar and mix well (I used an electric beater). Add more sugar if your mixture is loose--it should feel like a tacky cookie dough. (I ended up using almost exactly 3 pounds.)
Lay wax paper down over a few cookie sheets (for easy cleanup later). Scoop teaspoonfuls of the dough and shape into patties. (The easiest way to do this is to scoop with an ice cream scoop or two spoons since it will be a little sticky. Once you have the whole cookie sheet covered, go back and pat them flat with your hands. The balls will lose their tackiness as you are scooping out the rest of the tray, making them easier to shape.) Refrigerate for a few hours so you can handle them to add the chocolate.
Melt the chocolates with the oil and dip the chilled patties, covering completely. This step takes some practice since the dough balls can melt with the hot chocolate. The best method I found was chocolate-ing the bottoms of each patty with a knife and going back once the sheet is done to cover the tops with chocolate. There are probably better methods out there, but I am a novice at baking. Chill until set.
Yum! Give it a try-- they are tooooo tasty!