3 blackberry linzer cookies Recipes

unsalted butter, at room temperature, sugar, egg , large, heavy cream, vanilla extract, salt, baking powder, flour, seedless blackberry jam (as little as 1/4 cup may be needed), lemon zest, finely grated, sugar, leaves fresh thyme, finely chopped

all purpose flour, ground cinnamon, baking powder, freshly grated nutmeg, salt, unsalted butter, room temperature, powdered sugar plus more for decorating, grated orange peel, grated lemon peel, egg yolks, hazelnuts , finely ground in processor (about 1 1/2 cups ground), blackberry jam