Raspberry Cacao Ripple Rochers

Name: Raspberry Cacao Ripple Rochers
Prep time: 15 min
Cook time: 1 h 45 min
Total time: 2 h
Cuisine: Middle Eastern
Ingredients: 2 cups fresh or frozen raspberries; 1 tsp superfine aka caster sugar* (see note); 1/2 tsp freshly squeezed lemon juice; 2/3 cup superfine aka caster sugar* (see note); 1 tbsp kosher cocoa powder (such as Gefen brand (optional)); 3 large large egg whites (about 1/2 cup, at room temperature); 1 tsp pure vanilla bean paste; pinch salt; 1/3 cup cacao nibs (optional); 1/4 cup sliced almonds (optional); 1 cup raspberries