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thick and chewy triple chocolate cookies on a cooling rack
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5 from 2 votes

Triple Chocolate Cookies

These triple chocolate cookies showcase a trifecta of chocolate: cocoa powder, chocolate chips, and chocolate chunks. The dough flavors develop while it chills and when you bake them, they're as thick, rich, and fudgy as they look.
Prep Time30 minutes
Cook Time10 minutes
Chill Time3 hours
Total Time3 hours 40 minutes
Course: Dessert
Cuisine: American
Diet: Vegetarian
Keyword: chocolate, christmas cookie
Servings: 16 cookies
Author: Molly

Equipment

  • Stand Mixer or Electric Mixer
  • Large cookie sheet
  • Parchment paper

Ingredients

  • 1/2 cup (120g) unsalted butter softened to room temperature
  • 1/2 cup (100g) granulated sugar
  • 1/2 cup (100g) packed light brown sugar
  • 1 large egg room temperature
  • 1 teaspoon pure vanilla extract
  • 1 cup (125g) all-purpose flour  gluten-free if needed
  • 2/3 cup (55g) unsweetened natural cocoa powder (Note 1)
  • 1 teaspoon baking soda
  • 1/2 teaspoon kosher salt
  • 1 tablespoon milk any kind
  • 1 (3-4-ounce) semi-sweet chocolate bar chopped, plus more for topping
  • 1 cup semi-sweet chocolate chips

Instructions

  • Note: This cookie dough requires at least 2 hours of chilling. The cookies will be thicker the longer they chill (up to 3 days).
  • Add the butter, granulated sugar and brown sugar to a large bowl using a hand-held or stand mixer fitted with a paddle attachment. Beat on medium-high speed for 3 minutes, until it's light and fluffy in color. With the mixer still on, beat in the egg and vanilla extract, scraping down the sides of the bowl as needed.
  • In a separate bowl, whisk the flour, cocoa powder, baking soda, and salt together until combined.
  • Turn the mixer down to low and slowly add the dry ingredients to the wet ingredients. This helps prevent the flour from flying everywhere.
  • Add the chocolate chunks and mix using a rubber spatula to incorporate. Cover the dough tightly with plastic wrap and chill for at least 2 hours and up to 3 days. Do not skip this step.
  • Preheat the oven to 350°F and line two large baking sheets with parchment paper.
  • If the dough was chilling for longer than 24 hours, allow it to soften at room temperature for 30 minutes. Use a large cookie scoop to scoop out the dough. Roll them into tall cones and arrange them on the prepared baking sheet.
  • Bake the cookies in the preheated oven for 10-12 minutes or until the edges are set and the tops look slightly soft. Cool the cookies for 5 minutes on the cookie sheet then transfer them to a cooling rack to cool completely. 

Notes

Note 1. Natural Cocoa Powder. his is the cocoa powder most common in grocery stores. If it isn't labeled Duth-Processed, it's natural. Natural cocoa powder is not alkalized, meaning it's acidic. the acid in the chocolate reacts with the baking soda, helping the cookies to rise. Dutch-processed cocoa powder is neutral and needs another acidic agent in the dough to rise with baking soda alone.