Halva-Caramel Alfajores (Caramel Filled Sandwich Cookies)

Directions

1. In a large bowl, cream butter, sugar and halvah until light and fluffy. Beat in egg and vanilla. In another bowl, whisk flour, cornstarch, baking powder, baking soda and salt; gradually beat into creamed mixture. Divide dough in half. Shape each into a disk; wrap in plastic wrap. Refrigerate 2 hours or until firm enough to roll.
2. Preheat oven to 350°. On a lightly floured surface, roll each portion of dough to 1/4-in. thickness. Cut with a floured 1-1/2-in. circle-shaped cookie cutter. Place 1 in. apart on parchment-lined baking sheets. Bake until edges begin to brown, 7-8 minutes. Remove from pans to wire racks to cool completely.
3. Once cool, spread 1/2 teaspoon caramel sauce on bottoms of half of the cookies; cover with remaining cookies. Refrigerate until serving. Dust with confectioners sugar.