Alfajores (Dulce de Leche Sandwich Cookies)

01Method

1. 1

   Whisk together flour, half a cup of confectioners' sugar, cornstarch, and salt in a mixing bowl until combined.

2. 2

   Using an electric mixer, beat the butter in a separate bowl until light and fluffy, then incorporate the white sugar and vanilla extract until smooth.

3. 3

   Gradually fold the dry mixture into the butter mixture in three additions, mixing just until a dough forms. Split the dough into two equal portions, shape each into a cylinder, and chill in the refrigerator until firm, about 2 hours.

4. 4

   Heat the oven to 350°F (175°C).

5. 5

   Cut each chilled dough log into 24 rounds about 1/4-inch thick and arrange them on ungreased baking sheets.

6. 6

   Bake until the edges begin to turn lightly golden, 8 to 10 minutes.

7. 7

   Allow the cookies to rest on the baking sheet for 1 minute before transferring them to a wire rack to cool completely, 25 to 30 minutes.

8. 8

   Spread a generous layer of dulce de leche on half of the cooled cookies using a knife, then press the remaining cookies on top to form sandwiches and arrange on a serving platter.

9. 9

   Finish by lightly sifting confectioners' sugar over the assembled cookies.