These have quickly become a family favorite.
INGREDIENTS
1 cup softened butter
2/3 cup sugar
2 egg yolks
1 tsp vanilla
1/4 tsp salt
2 1/3 cup flour
1/2 cup Nutella (it helps to warm it up a bit for easy spreading)
DIRECTIONS
Preheat oven to 350 degrees. In a mixer, blend butter and sugar together until fluffy. Add eggs and vanilla and blend until mixed. Add flour and salt and blend until fully mixed. Roll into about 1.5" balls and put on a baking sheet lined with parchment paper. Dip the bottom of a 1/4 cup measuring cup in a little bit of sugar and smash dough down to a disk. Make a small thumbprint (or heart). Add about a teaspoon of Nutella to each thumbprint. Bake for 12-15 minutes. Let cook on cooling rack.