Chocolate cinnamon mousse

Name: Chocolate cinnamon mousse
Prep time: 5 min
Cook time: 5 min
Total time: 10 min
Yield: 4
Cuisine: En
Ingredients: 8 ounces dark chocolate, grated or crushed; 1 cup whipping cream; 1/2 teaspoon powdered cinnamon; 1 tablespoon unsweetened cocoa powder