You only need two ingredients to make this easy hot chocolate: milk and chocolate chips.
Heat milk until it simmers (small bubbles start to form on the edges of pan) in a small pan over medium heat.
Add chocolate chips. Reduce heat to low. Whisk until smooth and the chocolate chips are melted. If using, add the salt, vanilla, and/or cinnamon.
Pour into a mug and top with marshmallows or whipped cream. Enjoy.
Ingredient Notes
Milk: Any type of milk can be used in this recipe. For added richness, replace some of the milk with cream or half and half.
Chocolate Chips: Dark chocolate chips work best. Some brands of chocolate chips clump before melting. Stir over low heat until the chocolate is fully melted.