Stir all ingredients together in small saucepan over medium heat until mixture begins to simmer and thicken. Poke holes with skewer on top of cake and spoon glaze over top of cooled cake.
Serve with the quick glazed pineapple for a relaxed summer dessert that's perfect for barbecues. For this recipe you will need a 1 litre/1¾-pint freezer-proof container or eight ramekins.