Chocolate berry baked Alaska

Name: Chocolate berry baked Alaska
Prep time: 45 min
Cook time: 8 h 20 min
Total time: 8 h 20 min
Yield: 8 portions
Ingredients: 130 g unsalted butter; 120 g caster sugar; 1 tsp natural vanilla extract; 2 eggs; 20 g cocoa powder; 100 g self-raising flour; 1 pinch salt; 100 g dark chocolate; 80 g milk; 1 tsp ground roasted wattleseed; 500 g pouring (whipping) cream; 150 g condensed milk; 1 tsp natural vanilla extract; 50 g frozen mixed berries; 4 egg whites; 180 g caster sugar; 1 pinch cream of tartar