Stashcook | Mint Chocolate Cookies

Ingredients

• 1 cup all-purpose flour (120 grams)
• 1/3 cup unsweetened cocoa powder (28 grams)
• 1/2 teaspoon kosher salt
• 8 tablespoons unsalted butter (113 grams), room temperature
• 2/3 cup granulated sugar (133 grams)
• 1 large egg yolk (14 grams), room temperature
• 2 tablespoons whole milk (28 grams), room temperature
• 1 teaspoon pure vanilla extract (4 grams)
• 10 ounces mint chocolate chips (283 grams), finely chopped
• 1 cup white chocolate chips (170 grams)
• 1 tablespoon unsalted butter (14 grams), chopped
• 1/4 cup heavy cream (57 grams)
• 1 tablespoon peppermint extract (12 grams)