Pic related.
As a bonus pro-tip: use a food processor to crush up some vanilla wine biscuits and some butter (80g butter to half a packet of biscuits), press it into a oven-safe tin and bake it at 160C until it's starting to turn brown, and use that as your base.
And another, because I love you: Mint leaves, fresh raspberries and grated or shaved chocolate make great toppings.