Lunettes

Ingredients

• 0.5 cup butter unsalted (1 stick)
• 3  eggs 
• 2 cups flour all-purpose
• 1 cup ground hazelnuts 
• 0.5 cup jam ()
• 1 cup sugar 
• 1 teaspoon vanilla extract 

Equipment

• bowl
• baking sheet
• baking paper
• oven
• cookie cutter
• rolling pin

Directions

1. Gather your ingredients. Have ready a ribbed 3-inch square cookie cutter (or any cutter will work) and a ribbed 1-inch-round cookie cutter.
2. Cut the butter into cubes. In a large bowl, combine the butter, flour, sugar and hazelnut meal.
3. Mix with your hands until you have a dough with a crumbly consistency.
4. Add 2 of the eggs and the vanilla and mix well with your hands.
5. Knead the dough on a work surface and form into a large ball. Dust with flour and wrap with plastic. Refrigerate for at least 2 hours and up to 2
6. Preheat the oven to 350F. With a floured rolling pin, roll out the dough until about 1/2 inch thick.
7. Using the square cookie cutter, cut as many cookies as possible from your dough.
8. Lay the squares on a baking sheet lined with parchment paper. Using the round cutter, cut two holes in each of half of the squares. These will be the top cookies.
9. Beat the egg in a dish and brush all the squares with the egg wash.
10. Bake for 15 minutes or until light golden brown.
11. Sprinkle the lunette tops with powdered sugar.
12. Spread 1/2 tablespoon of each jam flavor in the middle of each bottom cookie (the ones with no holes). Cover with the tops.