Fold in nuts and saltines. Bake at given temperature for 30 minutes. Add strawberries and top with whipped cream. Refrigerate until serving time. Spoon sour cream and sugar into separate small bowls.
Place bowls on a large serving plate, or platter.
Use a fork to fluff sugar. Arrange strawberries around bowls. Diners first dip berries in sour cream, then in brown sugar. Add sugar and corn starch. Stir and bring to a boil.