Verified answer

Yes that is what you use when baking. There's a lovely recipe on the back.

That is what you are supposed to use when baking.

the sweetened stuff that you add water to to make hot chocolate has so little chocolate in it that is can not be used for baking.

They will be wonderful if you just add sugar. Without the sugar it will be bitter. Try taking a small taste of the unsweetened and you will understand.