I don't know how you could do this better than by having chocolate! So you could get a soft, smooth, and melty chocolate bar or you could make a nice cup of hot chocolate! here's a recipe to make it with milk on your stove:
In a pot mix together 3 tablespoons of unsweetened Cocoa,
6 tablespoons sugar, and 1 quart of milk. Put on stove until it's hot.
Stir continuously so that the milk wont burn.
(You can add some vanilla extract if you want)