Cornstarch and Condensed Milk Cookies filled with Dulce de Leche

Ingredients:

• 50 cookie shells
• 100 g butter
• 1 egg yolk
• 1 lemon zest
• 30 g powdered sugar
• 150 g condensed milk
• 250 g cornstarch
• 80 g all-purpose flour
• 1/2 tsp baking powder
• 400 g dulce de leche

Preparation

1. In a bowl, combine the butter, powdered sugar, egg yolk, and condensed milk until pale in color.
2. Flavor with lemon zest.
3. Sift and add the cornstarch, flour, and baking powder in two batches.
4. The mixture will be somewhat sticky.
5. Let it rest in the refrigerator for 1 hour on plastic wrap.
6. Weigh out a 10 g portion and shape it into a sphere.
7. Place on a baking sheet lined with parchment paper/silicone/nonstick sheet.
8. Press lightly with a fork.
9. Bake for 8 to 10 minutes at 350°F (170°C) or until the bottom is firm and lightly golden.
10. Cool completely.
11. Fill with dulce de leche to taste.
12. Enjoy!