Upside Down Grape Cake with Verjuice Recipe

Name: Upside Down Grape Cake with Verjuice Recipe
Yield: 6
Ingredients: [HEADING]Verjuice Syrup[/HEADING]; 500ml Maggie Beer Verjuice plus additional 2 tbspn; 1 1/3 (300g) caster sugar; 3 bay leaves; 1 x 12cm sprig fresh rosemary; 8 strips lemon rind; 1 sprig lemon thyme; [HEADING]Upside Down Cake Batter[/HEADING]; 300g white grapes; 1 cup (220g) caster sugar; 4 free range eggs, separated; 2 strips lemon rind; 1/3 cup (80ml) Maggie Beer Extra Virgin Olive Oil; 1/3 cup (80ml) Maggie Beer Verjuice; 1 cup (150g) plain flour; 3/4 tspn baking powder