Thank you Maria!!
Mix together 2 rolls of finely crushed Ritz crackers, 1/4 cup sugar and 1/2 cup melted butter. Press into 9x13 pan.
Mix 6 oz. can frozen oj concentrate, 14 oz. can sweetened condensed milk and mix with fork. Gently fold in 1 large cool whip and 1 large can mandarin oranges. Pour over crust and refridgerate.