Adapted from Smitten Kitchen’s recipe for classic ice cream sandwiches. The assembly/ice cream part of that recipe was ridiculously involved for the amount of time and patience I had when I tried it last summer. The great news is that these cookies keep in the freezer for ages and are deeply chocolatey with a hint of salt. I have plans to make them into heart-shaped Oreos for Valentines like Martha Stewart’s cover this month. The all-purpose filling/icing can be found here.
2 2/3 cups (335 grams) all-purpose flour
2/3 cup plus 1/4 cup (75 grams) extra dark or Dutch-processed unsweetened cocoa powder
1 1/4 cups (2 1/2 sticks or 285 grams) unsalted butter, softened
1 cup (200 grams) granulated sugar
3/4 teaspoon table salt
2 large egg yolks
1 tablespoon vanilla extract
Preheat oven to 350°F degrees. Line two baking sheets with parchment paper. Sift the flour and cocoa together (I am generally too lazy to sift things but cocoa is really lumpy so don’t skip this) and set aside. In the bowl of a standing mixer with a paddle attachment, beat the butter, sugar, and salt together until light and fluffy. Add the yolks and vanilla and mix until combined, then scrape down sides and mix briefly again. Add the flour mixture a little at a time then mix until combined.
Transfer the dough to a lightly floured work surface and divide into two-four equal pieces. If the dough is too soft to handle, wrap and chill it until firm enough to roll out (I recommend 30 minutes only; any longer and it becomes crumbly to roll out). Roll each batch into a 1/4-inch thick rectangle, about 10 by 8 inches. Cut into a total of 20 2-by-4-inch rectangles or use the cookie cutter of your choice.
Use an offset spatula to transfer the rectangles to the prepared sheets; you’ll only need an inch space between them. Use the tip of a thermometer (totally brilliant tip from Amy, by the way; it made far better indentations than skewers that I usually use for docking) to poke the cookies with holes (Amy recommends 14 holes but I usedthis as my guide and made more).
Bake the cookies for 16 to 18 minutes, or until they stay firm when tapped in the center. Transfer to a wire rack to cool completely. Repeat with remaining cookie dough, rerolling scraps as needed.
Cookies keep wrapped airtight in the freezer for up to 2 months.