Combine pudding and milk per directions on box until pudding thickens. Heat 1/4 cup of juice mixture with 2 tbsps. of pineapple and add to pudding. Set aside
Slowly combine remaining juice with sugar and corn starch. Heat until mixture thickens and becomes clear. Fold in remaining pineapple
3Alternate layers of pudding and sauce, starting with pudding, by spooning into parfait or drinking glasses that are slightly tilted. (Pouring in layers will cause them to combine and lose the parfait effect) Top with the sauce and serve at room temperature or cold.
Top with whipped cream and a cherry before serving.