Break up the chocolate bar and put in a heatproof bowl with margarine.
Microwave uncovered, for 40 seconds. Mix with a whisk to melt the chocolate. Preheating the oven to 355ºF/180ºC.
Add an egg and sugar to the mixture from Step 2 and mix well with a whisk. Add cocoa powder and cake flour and mix well.
Pour into a ramekin and bake in a 355ºF/180ºC oven for 10 minutes. ※ If using paper muffin cups, shorten the baking time.
Use the temperature and baking time in this recipe as a guide and adjust to your own oven.
If not eating immediately, microwave for around 30 seconds (at 500 W) to make it melty again.
You can use any kind of cocoa and chocolate you like. Milk chocolate is ok too, but it may make it sweeter.
Someone said that this turned out delicious without the cocoa, so if you don't have cocoa, try making this anyway.
Margarine can make it a little salty, so if that bothers you, use unsalted butter instead.
Story Behind this Recipe
I wanted a little something sweet, but nibbling on a chocolate bar just wasn't satisfying. So, I adapted a larger recipe into this easy version. I adjusted the ingredient amounts and through a lot of trial and error, I finally came up with this recipe.
If you bake it too long, it will turn into regular chocolate cake, so be careful But it will still be good like that ) If you make it without sugar, the inside will turn out moist instead of melty, so follow the amount of sugar listed in the recipe.