Chocolate Hazelnut Thumbprint Cookies

Place the chopped hazelnuts into a bowl and roll each ball into nuts, pressing gently.

Arrange balls 1 inch apart on baking sheets lined with parchment paper.

Press thumb into center of each cookie, leaving an indentation.

Bake in preheated oven for 10-12 minutes.

Remove cookies from the baking sheets and cool completely on wire racks.

Pipe or spoon a little bit of the chocolate-hazelnut spread into the center of each cookie.