- Chocolate Sauce -

Chop the dark chocolate and add to a medium bowl. Set aside until use.

Add the sugar and water to a medium saucepan. Bring to a boil over medium heat.

Add the cocoa powder to the solution and mix well. Bring to a boil. Pour this solution into the chopped dark chocolate.

In the meantime, add the cream to a medium saucepan and bring to a boil. After boiling, pour into the chopped dark chocolate. Stir the mixture until smooth.

NOTE: the sugar solution and boiled cream should be added to the dark chocolate at about the same time

- Chocolate Pancake -

Combine the flour, cocoa powder and baking powder in a medium bowl. Add the sugar and mix well; set aside.

Whisk the egg and milk and add to the flour mixture gradually. Mix until smooth. Add the melted butter and mix well.

Heat a large skillet over medium heat and coat with butter. Pour 1/4 cupfuls of the batter into the skillet, and cook until bubbles appear on the surface. Flip with a spatula to cook on the other side.

Serve with vanilla ice cream, whipped cream, chocolate sauce, etc...

Please check the following site http://www.chez-k.org/english/classics/chocolate-pancake/