Mix butter and sugar until fluffy. Add eggs, one at a time; beat after each addition. Add flour and lemon juice. Pour batter in 15-1/2 X 10-1/2 X 1 jelly roll pan.
Mark dough with knife into squares. Put heaping spoonful of filling in each square.
Bake at 350° F for 30 minutes. When cool, cut into squares and sprinkle with powdered sugar.
Servings: