Baking sheet
Parchment paper
For the batter:
300 g soft butter
150 powdered sugar
1/2 teaspoon vanilla extract or 1 package vanilla sugar
1 pinch of salt
1 teaspoon ground orange peel
4 egg yolks
300 g all-purpose flour
3-4 tablespoons orange juice
Filling:
100 g Nutella
and/or orange or apricot jam
100 g semisweet chocolate
Preparation:
1. Preheat oven to 180 degrees Celsius (350F). Line baking sheet with parchment paper.
2. Using an electric hand mixer whisk butter until smooth. Add sugar, vanilla extract or vanilla sugar, salt, and orange peel. Whisk until batter is smooth.
3. Add egg yolks, one at a time. Whisk each egg yolk in for 30 seconds. Sift flour and add in two portions, alternating with the orange juice.
4. Add batter to a piping bag and squeeze fingers of 5 cm (2 inches) onto parchment paper. Bake cookies for about 8-10 minutes at 180 degrees Celsius (350F).
5. Remove cookies from oven, remove with parchment paper from hot baking sheet, and let cool down.
6. Spread Nutella or jam on the flat side on one cookie, then add a second cookie with the flat side on top.
7. Melt semisweet chocolate, and dip cookies with one end into chocolate. Let cookies dry on parchment paper.