1cupsoftened unsalted butter, cut into chunks(230 grams)
½teaspoonsalt
½cupconfectioners' sugar(70 grams)
2cupsall-purpose flour(260 grams)
1cupDulce de Leche of your choice (see notes)
Instructions
Put the softened butter, salt and confectioners' sugar in a food processor and process until creamy. Add flour and pulse until mixture holds together.
Turn the dough out onto a large sheet of parchment or plastic wrap and press into a slab that's about ⅛ of an inch thick. Alternatively, you can empty it into a large (gallon size) freezer bag, close the bag and roll it in the bag.
Chill the dough for about an hour or until firm. If you used a bag, cut away the bag.
Using a round cookie cutter (I use a 1 ½ inch size) cut out circles. Transfer to parchment lined baking sheets and bake for 12-13 minutes. Alternatively, you can make 2 inch rounds in which case you might need to bake a few minutes longer.
To assemble the cookies, put your dulce de leche in a freezer bag or a pastry bag. Snip off the corner and pipe onto bottom of cookies before sandwiching with the rest.
Notes
There are all kinds of recipe for dulce de leche. I usually make it in the Instant Pot or just buy a can of prepared dulce de leche (it's usually with the condensed milk) and add 1 tablespoon of butter, 1 tablespoon of powdered sugar and beat until fluffy.