Do you have a great Chocolate Sauce recipe?(both)

Just now discovered one. Bought a 200 gram Snack Chocolate, broke it into separate cubes, put all cubes into plastic cup. Ate a couple squares, then forgot about it. Temperature here is about 95. The Chocolate had all melted into Sauce with 1/2 a dozen Flavours all mingled together.
Will go great poured over Vanilla ice Cream