Hazelnut-Espresso Sandwich Cookies

The inspiration for this cute cookie came from my sister's description of a hazelnut cookie she tried in Italy. She declared my version to be a wonderful approximation. My family likes to help fill and trim them. —Cindy Beberman, Orland Park, Illinois36 ServingsPrep: 45 min. + chilling Bake: 10 min./batch + cooling
Ingredients
- 1 cup butter, softened
- 1-1/4 cups sugar
- 1 egg
- 1 egg yolk
- 4 teaspoons instant espresso granules
- 2 teaspoons vanilla extract
- 2-1/2 cups all-purpose flour
- 1/2 teaspoon salt
- 1/2 teaspoon baking powder
- 1 cup finely ground hazelnuts
- FILLING:
- 1-3/4 cups semisweet chocolate chips, divided
- 1-1/4 cups milk chocolate chips
- 1 cup heavy whipping cream
Directions
- In a large bowl, cream butter and sugar until light and fluffy. Beat
- in the egg, yolk, espresso granules and vanilla. Combine the flour,
- salt and baking powder; gradually add to creamed mixture and mix
- well. Stir in hazelnuts.
- Divide dough into thirds; flatten each portion into a circle. Wrap
- each in plastic wrap; refrigerate for 1 hour or until easy to
- handle.