Blueberry Hot Chocolate

Name: Blueberry Hot Chocolate
Prep time: 10 min
Total time: 10 min
Cuisine: World Cuisine
Ingredients: 110 grams fresh blueberries (3/4 cup); 360 milliliters whole milk (1 1/2 cups); 75 grams chopped dark chocolate (1/2 cup); 30 milliliters blueberry simple syrup (2 tablespoons), or to taste; Unsweetened cocoa powder, shaved dark chocolate, or freeze-dried blueberries, to garnish; Homemade blueberry marshmallows, for serving