Melt 2 sticks butter over medium heat until browned, then cool. Make Classic Sugar Cookies with the browned butter in place of the 2 sticks butter and use just 1 egg yolk and 3/4 cup granulated sugar total (omit confectioners'). Scoop into tiny balls and bake 10 to 12 minutes at 325 degrees. Cool, then sandwich with raspberry jam and dust with confectioners' sugar.
Recipe courtesy Food Network Magazine