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A stack of homemade Oreo cookies with a glass of milk.

Homemade Oreo Cookies

4.79 from 14 votes
Rich and tender dark chocolate cookies, filled with a soft marshmallow buttercream.
Servings 14 cookies

Ingredients

For the Cookies

  • 1.5 cups (180 g) all-purpose flour
  • 3/4 cup (88.5 g) Extra Brute Cacao Barry Cocoa Powder
  • 1 teaspoon (4 g) baking soda
  • 1/2 teaspoon (3 g) salt
  • 1 cup (226 g) unsalted butter, slightly cold
  • 3/4 cup (150 g) granulated sugar
  • 1/4 cup (55 g) brown sugar, packed
  • 1 egg, cold

For the Buttercream

  • 1 cup (226 g) unsalted butter, slightly chilled
  • 3 cups (375 g) powdered sugar, measured then sifted
  • 4 ounces store bought marshmallow cream
  • 1/2 teaspoon (2.1 g) vanilla extract
  • pinch of salt

Instructions

FOR THE COOKIES

  • Preheat your oven to 350 F. Line two baking sheets with parchment paper. Set aside.
  • In a medium size mixing bowl, whisk together the flour, cocoa powder, baking soda and salt. Set aside.
  • In a separate mixing bowl, beat together the butter and sugars until smooth. Stir in the egg until well mixed.
  • Gradually add the dry ingredients and stir on low speed until mixed.
  • Using a cookie scoop or spoon, create 1.2 oz. balls of cookie dough. Roll each into a smooth ball, placing them about 2-3 inches apart on the cookie sheet (for a standard cookie sheet, you should be able to fit 12 cookies). Place a small square of parchment on the first ball of cookie dough, then use the bottom of a measuring cup or drinking cup (as long as it's flat and smooth) and gently press the cookie dough down (it should be about 1/3-1/2 inch thick). Repeat for all of the cookies.
  • Bake the cookies for 6 to 7 minutes. Allow to cool completely before making the cookie sandwiches.

FOR THE BUTTERCREAM

  • Beat the butter and marshmallow cream until smooth.
  • Gradually add the powdered sugar, followed by the vanilla and salt.
  • Continue to beat for an additional 1 to 2 minutes, so the frosting becomes lighter in color and texture.
  • Use a piping bag to pipe buttercream on half of the cookies, then pressing the remaining cookies on top to create the cookie sandwich. The buttercream will spread just a bit. We want it to come close to the edge of the cookie but not over the edge of the cookie.
Course: Dessert
Cuisine: Cookies
Keyword: Homemade Oreo Cookies