I have a 1 ingredient chocolate mousse for you - well two if you count the water.
All you need to make this chocolate mousse is your favorite chocolate and water (and a whisk)
Normally water can make chocolate sieze up and become grainy, but in this recipe it creates an emulsification of the cocoa butter and water that results in a smooth and rich chocolate mousse! I used milk chocolate because I didn’t want the chocolate flavor to be too intense but use any cocoa percentage that you want. This recipe is thanks to Herve This who is considered by many to be the father of molecular gastronomy.
** One note, I have made this with milk chocolate and semi sweet chocolate - I like the milk chocolate better, but use what you like. There is nothing to dilute the chocolate flavor so if you want your chocolate flavor to be a bit softer, I suggest using a nice milk chocolate.