Preparation:
Cream together butter and sugar beat until light and fluffy combine coffee powder, vanilla, and egg yolks-mix well add to butter mixture-beat to mix well beat in flour, until well blended drop by teaspoonsful onto a parchment-lined baking sheet bake @ 350 degrees for 14-16 minutes, until egdes begin to brown remove from oven and allow to cool for 10 minutes remove with a spatula to cool on a wire rack repeat with remaining dough serve at room temperature |