Homemade Slow Cooker Hot Chocolate

Bahan-bahan (10 porsi)

• 6 cups (1440ml) whole milk (skim, 1%, or 2% are OK)
• 2 cups (480ml) heavy cream
• 1/2 cup (100g) granulated sugar
• 8 ounces (226g) semi-sweet chocolate, coarsely chopped
• 1/4 cup (21g) unsweetened natural cocoa powder or dutch-process cocoa powder
• 2 teaspoons pure vanilla extract
• toppings: marshmallows, whipped cream, candy canes, salted caramel, etc.