Raspberry and Orange Jaffa Cakes

Name: Raspberry and Orange Jaffa Cakes
Prep time: 40 min
Cook time: 7 h 45 min
Total time: 7 h 45 min
Yield: 12 pieces
Ingredients: vegetable oil; 150 g fresh raspberries; 250 g orange juice; 4 gelatine leaves; 1 - 2 Tbsp caster sugar; 100 g unsalted butter; 75 g caster sugar; 125 g plain flour; ½ tsp baking powder; 2 medium eggs; 1 tsp natural vanilla extract; 1 pinch fine sea salt; 200 g dark chocolate (70% cocoa solids)