WALNUT EXTRACT FOR BAKING RECIPES

Steps:

• In a large bowl, cream butter and cream cheese until blended. Gradually beat flour into creamed mixture. Divide dough into 3 portions. Shape each into a disk. Wrap and refrigerate 1 hour or until firm enough to roll., Preheat oven to 375°. For filling, in a small bowl, beat egg whites and vanilla on medium speed until foamy. Gradually add sugar, 1 tablespoon at a time, beating on medium after each addition until well blended. Stir in walnuts., Generously coat a work surface with confectioners' sugar. Roll 1 portion of dough into a 12-in. square about 1/8 in. thick, sprinkling with additional confectioners' sugar as necessary to coat well. Cut into sixteen 3-in. squares., Shape 2 teaspoons filling into a small log about 2 in. long. Place diagonally onto a square. Overlap opposite corners of dough over filling; pinch tightly to seal. Place 2 in. apart on greased baking sheets. Repeat with remaining dough and filling., Bake until bottoms are golden brown, 9-11 minutes. Remove from pans to wire racks to cool completely. Dust with confectioners’ sugar., To Make Ahead: Dough can be made 2 days in advance. Wrap and store in an airtight container in the refrigerator.
  , Freeze option: Freeze cookies in freezer containers. To use, thaw before serving. If desired, dust with additional confectioners' sugar.

Steps:

• Heat oven to 180C/160C fan/gas 4. Butter 2 x 20cm springform cake tins and line with baking parchment. Set aside 2 tbsp of the coffee for the filling.
• Beat the butter, flour, sugar, baking powder, eggs, vanilla and half the remaining coffee in a large bowl with an electric whisk until lump-free. Fold in the finely chopped walnuts, then divide between the tins and roughly spread. Scatter the roughly chopped walnuts over one of the cakes. Bake the cakes for 25-30 mins until golden and risen, and a skewer poked in comes out clean. Drizzle the plain cake with the remaining coffee. Cool the cakes in the tins.
• Meanwhile, make the filling: beat together the icing sugar, cream and mascarpone, then fold in the reserved 2 tbsp coffee. Spread over the plain cake, then cover with the walnut-topped cake and dust with a little icing sugar.