Ingredients
Method
- Stir the flour, cocoa powder, baking soda, and salt together in a large bowl until evenly blended.
- Beat the butter with both sugars on medium-high speed until light and creamy, scraping the bowl as needed, then mix in the egg and vanilla until smooth before adding the dry mixture and mixing on low until a thick dough forms.
- Line baking sheets and portion the dough into small balls, then press each one into a flat round about 1.5 inches wide and refrigerate the trays briefly to help them hold their shape.
- Preheat the oven to 350°F (177°C) while the cookies chill.
- Arrange the chilled rounds a few inches apart and bake in batches until the edges look set and the tops show light cracks, then let them cool on the pans before moving to a rack to cool completely.
- Beat the butter and shortening together until completely smooth, then gradually add the powdered sugar and vanilla and whip until very thick and creamy.
- Spread or pipe the cream onto the flat side of half the cookies and gently press the remaining cookies on top to form sandwiches.
Nutrition
Notes
These cookies are at their best once fully cooled and sandwiched, when the cream sets just enough to feel like a store-bought classic but taste completely homemade.
