CRUSH firm, ripe strawberries with masher in the Tupperware® Thatsa Bowl.
MEASURE 1 3/4 cups crushed strawberries into a second bowl. Stir in 4 cups sugar and let stand 10 minutes.
STIR IN 2 Tbsp. lemon juice and 1 pouch Certo Liquid Pectin. Continue stirring a full 3 minutes.
SPOON into Tupperware® FreezeSmart Containers, seal and freeze up to 1 year.