Oreo Cookies Recipe

Beat together the softened butter, granulated sugar, and light brown sugar until light and fluffy.

Beat in the eggs, one at a time, then add the vanilla extract.

Whisk together the flour, cocoa powder, baking soda, and salt. Gradually mix the dry ingredients into the wet mixture until a thick dough forms.

Chill the dough for at least 60 minutes to firm up for rolling.

Roll the dough between parchment sheets to about 1/8 inch (3 mm) thickness. Cut out rounds and place on lined baking sheets.

Bake at 350°F (175°C) for 9-11 minutes, then cool completely on a wire rack.

In a mixer, beat the butter until smooth. Gradually add the powdered sugar and beat until light and fluffy.

Add the vanilla extract and 2 tablespoons of milk; beat until creamy and spreadable. If needed, adjust with more milk or sugar.

To assemble, pipe or spoon filling onto the flat side of one wafer and top with another wafer to form a sandwich.