Prepare the Base: In a small saucepan, combine 2 cups of milk, 2 tablespoons of cocoa powder, and 2 tablespoons of sugar. Whisk together over medium heat until the mixture is warm and all ingredients are fully blended, about 3-5 minutes. Be careful not to bring it to a boil.
Add Flavor: Once the mixture is warm, remove it from the heat and stir in 1/4 teaspoon of vanilla extract. This will add a lovely aroma and depth to the cocoa.
Incorporate the Color: At this point, add 1/4 teaspoon of blue food coloring to the milk mixture. Stir well until the color is evenly distributed, making sure to reach the desired hue.
Serve: Pour the vibrant blue cocoa into mugs. Top generously with whipped cream, letting it melt slightly into the warm cocoa.
Finish with Sparkles: Sprinkle the top with sparkling sugar for an enchanting presentation that adds a holiday feel. Serve immediately and enjoy with friends and family!