Keto Chocolate Cheesecake

Name: Keto Chocolate Cheesecake
Prep time: 20 min
Total time: 20 min
Cuisine: British
Ingredients: 2 cups almond flour (200g); 6 tbsp melted butter (85g); 2 tbsp granulated erythritol; 14 oz sugar-free chocolate (or dark chocolate (85% cocoa solids minimum) 400g); 8.8 oz mascarpone cheese (room temperature, 250g); 4 tbsp powdered sweetener (or to taste); 14 oz cream cheese (room temperature, 400g); 1 tsp vanilla extract; 2 tbsp heavy cream (30 ml); Pinch of sea salt; 2/3 cup heavy cream (160 ml); 1.5 tbsp unsalted butter (22g); 4.2 oz sugar-free chocolate (or dark chocolate (at least 85% cocoa solids), 120 g); optional tiny pinch of salt; 1 square of dark chocolate (grated (10g))