- 1/2 cup unsalted butter, softened (1 stick)
- 1/2 cup granulated sugar
- 1/2 cup light brown sugar, packed
- 1 large egg
- 1 1/2 teaspoons vanilla extract
- 2 tablespoons cream or half-and-half
- 1 1/4 cups all-purpose flour
- heaping 1/2 cup (almost 2/3 cup) unsweetened natural cocoa powder
- 1 teaspoon baking soda
- 1/4 teaspoon salt, or to taste
- 2 cups semi-sweet chocolate chips
- about 1 1/2 to 2 cups quartered peppermint patty pieces, i.e. York brand (or halved if using peppermint patties minis which I used)
To the bowl of a stand mixer fitted with the paddle attachment (or large bowl and electric mixer), add the butter, sugars, and beat on medium-high speed until creamed and well combined, about 3 to 4 minutes.
Stop, scrape down the sides of the bowl, and add the egg, vanilla, and beat on medium-high speed until well combined, about 2 minutes.
Stop, scrape down the sides of the bowl, and add the cream, and beat on medium-high speed until well combined, about 1 minute. The batter may look a little ‘grainy’ and almost as if it’s separated, this is okay.
Stop, scrape down the sides of the bowl, and add the flour, cocoa powder, baking soda, salt, and beat on low speed until just combined, about 1 minute.
Stop, scrape down the sides of the bowl, and add the chocolate chips, and beat on low speed until just combined, about 30 seconds.
Using a 2-tablespoon cookie scoop or your hands, form approximately 19 equal-sized mounds of dough. The dough is very soft and I find it easiest to use a cookie scoop.
Preheat oven to 350F, line a baking sheet with a Silpat or spray with cooking spray.
Flatten the dough mounds about halfway and add about 3 or 4 peppermint patty pieces to the top of each mound, pressing them in firmly so they adhere. Place dough mounds on baking sheet, spaced at least 2 inches apart (I bake 8 cookies per sheet) and bake for about 8 to 10 minutes or until edges have set and tops are just set, even if slightly undercooked and glossy in the center; don’t overbake. Cookies firm up as they cool. Allow cookies to cool on baking sheet completely. I let them cool on the baking sheet and don’t use a rack. Cookies will keep airtight at room temp for up to 5 days or in the fridge for up to 1 week. Alternatively, unbaked dough can be stored airtight in the refrigerator for up to 5 days, or in the freezer for up to 4 months, so consider baking only as many cookies as desired and save the remaining dough to be baked in the future when desired.