ALFAJORES DE DULCE DE LECHE

Alfajores de Dulce de Leche image

Dulce de leche is a popular sweet in Argentina and throughout the rest of South America, where it is also called manjar and leche quemada ("burnt milk"). Store-bought versions are increasingly available in North American supermarkets and specialty foods stores; use it in place of the homemade variety, if desired.

Yield makes 3 1/2 dozen

Number Of Ingredients 8

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Ingredients

4 cups all-purpose flour, plus more for work surface
1/4 cup plus 2 tablespoons confectioners' sugar
1 1/2 cups (3 sticks) chilled unsalted butter, cut into pieces
1/2 cup water
Sanding sugar, for sprinkling
Dulce de Leche (recipe follows), chilled
2 (14-ounce) cans sweetened condensed milk
(makes 1 3/4 cups)

Steps:

Line a baking sheet with parchment paper or a nonstick baking mat (such as Silpat).
Sift together flour and confectioners' sugar. In a food processor, pulse together flour mixture, sugar, and butter until the mixture resembles coarse meal, about 20 seconds. With machine running, pour in the water in a slow stream, and process just until the dough comes together, about 20 seconds. Form the dough into two flattened disks and wrap well in plastic. Refrigerate for 1 hour.
Preheat oven to 350°F. On a well-floured work surface, roll out one disk of dough to a scant 1/4-inch thickness. Using a 1 3/4-inch round cookie cutter, cut out rounds from the dough and transfer to the prepared baking sheet. Repeat with the other disk of dough. Gather up the scraps from both batches, and reroll and cut. Sprinkle half the rounds with sanding sugar. Bake until golden brown, about 15 minutes, rotating sheets halfway through. Transfer to a wire rack to cool completely.
About 30 minutes before serving, spread 1 teaspoon of the cold dulce de leche on the bottom of the unsugared cookies. Place the sugared cookies on top to make sandwiches. Serve immediately. Unfilled cookies can be stored in an airtight container at room temperature up to 3 days.
Empty milk into the top of a double boiler or a heatproof bowl over a pan of simmering water. Cover with a tight-fitting lid. Cook, stirring every 10 to 15 minutes, until the milk is thick and amber in color, about 5 hours. Remove from heat, and beat with a wooden spoon to smooth out. Transfer to a clean bowl, and refrigerate several hours or up to 3 days.