Mix together milk, and heavy cream (if using), along with cornstarch, cinnamon (if desired, see note), sugar, and vanilla extract. Whisk the mixture over medium heat until it reaches a boil, and then let it boil for 2 minutes, stirring continuously until it thickens and becomes creamy.
3 Tablespoons cornstarch, 2 cups milk, 1/4 cup heavy cream, 4 Tablespoons sugar, 1/2 teaspoon vanilla extract, Pinch of ground cinnamon
Pour the hot mixture into mugs and garnish each serving with a dusting of cinnamon, desiccated coconut, and a choice of pistachios, walnuts, or almonds.
Ground cinnamon, Chopped nuts, Coconut flakes, Rosewater or orange blossom water