Pasta Frola (Quince Fruit Tart) - Ingredients 2½ cups all-purpose flour 1 cup cornstarch 1 cup sugar 3 tsp. baking powder 1 tsp. salt 2 sticks butter, chilled and cubed 2 whole eggs + 1 egg yolk 1 tsp. vanilla extract 2 Tbsp. milk [if necessary] 1 lb. dulce de membrillo or dulce de batata, cut up into small pieces 2 Tbsp. water egg wash: 1 beaten egg + 1 tsp. milk Equipment: Deep tart pan [9” x 1.5”] with removable bottom