Ingredients
Equipment
Method
- Preheat oven to 350°F (175°C) and line a baking tray with parchment paper.
- In a bowl, whisk together cornstarch, flour, baking powder, baking soda, and salt. Set aside.
- In another bowl, beat butter and powdered sugar until light and fluffy.
- Add egg yolks, vanilla, and lemon zest. Beat until combined.
- Add dry ingredients in batches and mix until dough forms. Wrap in plastic and chill 30 minutes.
- Roll dough to ¼-inch thickness. Cut into rounds using a 2-inch cutter and place on tray.
- Bake for 8–10 minutes or until bottoms are lightly golden. Cool completely.
- Spread dulce de leche on the flat side of half the cookies. Top with another cookie to form sandwiches.
- Optional: Dust with powdered sugar or roll sides in shredded coconut.
Notes
Let cookies rest a day for flavors to develop. You can roll the sides in shredded coconut for a traditional finish. Store in an airtight container at room temperature for up to 5 days.