Make the jelly according to the packet instructions and pour it into a dish or individual glasses.
Refrigerate until completely set (about 3–4 hours).
Spoon or cube the jelly into serving bowls if needed.
Pour chilled vanilla vla over the jelly.
Top with whipped cream, fruit, or crushed Tennis biscuits if desired.
Serve cold. The creamy vla and fruity jelly are a classic combination.