Ruby Squares

Ruby Squares

  Ingredients: 1 cup flour 1/4 cup raw sugar 1 stick (1/2 cup) unsalted butter, at room temperature Filling: 2 eggs zest of 1 grapefruit 1/2 cup ruby grapefruit juice 3/4 cup sugar squeeze of lemon 1/4 tsp baking powder 2 TbspĀ  flour 1 Tbsp corn flour Set the...