Mint Chocolate Mousses

Name: Mint Chocolate Mousses
Prep time: 20 min
Cook time: 5 min
Total time: 25 min
Cuisine: American
Ingredients: 3 sheets platinum-grade leaf gelatine, we used Dr. Oetker; 150 g dark chocolate, roughly chopped; 2 medium egg whites*; 4 tbsp. powdered sweetener, we used Canderel; 100 g 0% fat Greek yogurt; Couple drops peppermint extract, about 1/8tsp, we used Dr. Oetker; 200 mL double cream