(Husarenkrapferl, Thumbprint Cookies, Shortcrust cookies)
2 1/2 cups sifted all purpose flour
½ lb butter
2 egg yolks
1 tsp. vanilla
8 oz blanched grated almonds or hazelnuts
Cut the butter into the flour/sugar mixture. Form well, add yolks, and gather into a ball. Roll on wax paper. Form small balls, make thumbprint in center. Fill with jelly. Bake at 325 F.
Note: Here's another one I found in Gertrude's handwriting.