Instructions

  1. Place the sugar and the butter together in a food processor with the steel blade and process until creamed.
  2. Add the eggs and the milk, pulsing after each addition. Then add the flour, baking powder, and the lemon rind, pulsing until a smooth mass is formed.
  3. Place the dough in a greased and floured 9- by 9-inch square baking pan. Pat down and bake in a preheated 350°F oven for 30 minutes. When cool enough to handle, turn out on a rack.
  4. Sprinkle with confectioners’ sugar, slice, and serve.