Rich ‘n’ Thick Hot Chocolate

Ingredients:

• 2 teaspoons cornstarch
• 4 cups milk, divided
• 2 (3.5-oz.) dark chocolate bars (at least 70% cacao), chopped
• 1/3 cup honey
• 1 teaspoon vanilla extract
• Pinch of salt
• Marshmallow Whipped Cream (optional)