How to Make Classic Oreo Cookies at Home

Ingredients

For the cookies:

1 1/4 cups all-purpose flour
1/2 cup Dutch-process cocoa powder
1 teaspoon baking soda
1/4 teaspoon baking powder
1/4 teaspoon fine sea salt
1 cup granulated sugar
10 tablespoons unsalted butter, at room temperature, dice in small cubes
1 large egg, at room temperature

For the filling:

1 stick unsalted butter, at room temperature
2 ½ teaspoons pure vanilla extract
2 1/2 cups powdered sugar, sifted
1/8 teaspoon fine sea salt

Instructions

the cookies:

Preheat oven to 375°F. Line two baking sheets with parchment paper.
In the bowl of an electric mixer fitted with the paddle attachment, combine flour, cocoa powder, baking soda, baking powder, salt, and sugar. While on low speed, add the butter in with a few pieces at a time, then add egg. Continue mixing, until the dough comes together in a ball mass. About 1 minute.
Divide the dough into 1 tablespoon sized balls using a small cookie scoop and drop onto prepared baking sheets, at least 2 inches apart. Lightly moist the palm of your finger tips with water before flattening each ball of cookie dough to about 1/8-inch thickness. Chill each tray of cookie dough for at least 10 minutes in the refrigerator.before baking.
Bake for 9 to 10 minutes, rotating once to ensure even baking, or until the cookies are fragrant and completely set. Set baking sheets on a rack to cool. Cookies can be stored in an airtight container for 2-3 days.

the filling:

In a stand mixer fitted with the paddle attachment, beat the butter and vanilla on medium-low speed until well combined. Scrape down the bowl. Gradually add the powdered sugar then the salt. Turn the mixer on high and beat for 2-3 minutes until filling is light and fluffy.

To assemble:

Serve the same day the cookies are assembled for best texture.

Using a pastry bag, drop a teaspoon-size of filling into the center of one cookie. Place another cookie, equal in size to the first, on top of the cream. Press down softly to work the filling evenly towards the outside of the cookie. Repeat with remaining cookies and filling.