These easy Dulce de Leche Cookies feature soft, buttery dough filled with caramel and topped with a pinch of sea salt. If you love the combination of sweet and salty flavors, you will love these thumbprint cookies!
In the bowl of a stand mixer fitted with a paddle attachment, combine the softened butter and sugar. Cream until smooth.
Add in the egg, egg yolk and vanilla. Mix until combined.
Add in half of the flour and mix on low speed until combined. Add in the remaining flour and mix until combined. Cover and refrigerate the dough for 1 hour.
Preheat the oven to 375 degrees F and line two baking sheets with parchment paper.
Shape the dough into rounded 1 tablespoon sized balls and arrange them 2 inches apart on the parchment lined sheets. Slightly flatten the balls with the palm of your hand. Using a teaspoon measuring spoon, make an indentation in the center of each cookie.
Bake in the preheated oven until the edges barely start to brown, about 10 to 12 minutes.
Remove the pans from the oven. If needed, use a teaspoon to press down on the indentations while the cookies are still warm. Cool on a wire rack to room temperature
Using a small spoon or pastry bag, fill the indentation of each cookie with dulce de leche. Sprinkle with a pinch of sea salt flakes. Makes about 36 cookies.
Notes
Storing: The cookies may be stored in a tightly sealed container at room temperature for up to 5 days.Freezing: The uncooked cookie dough can be tightly wrapped and frozen for up to 60 days. Thaw in the refrigerator overnight before proceeding with the recipe.