Is there a way to make my hot-chocolate sweet?

Sugar. That's what sugar is for is to make things sweet.

If you want a low calorie kind then buy Splenda. I have never used syrup but I'm sure it will work. You can try honey or whip cream.

Also you can try this: http://www.ehow.com/how_2285707_sweeten-coffee-sug...

Hot chocolate is different than most things so without sugar certain things might not work.

You can melt chocolate chips into it. Add hot fudge ice cream topping. Top it with sweetened whipped cream. Add some honey. You can mix in any flavor of coffee flavoring such as hazelnut or vanilla.

There is no limit to what you can add.

Try some sugar, maybe? You can also add some vanilla flavoring and whipped cream for a paticularly creme de la creme cocoa.

add a little brown sugar.

a teaspoon of sugar!

did you try chocolate milk???? yummmmmmm