Good, I agree with pdswife, sounds like the heat may have been a tad high.
I'm sure there is a faster way the pros do it, but here is what I do.
Cut the butter into chunks.
Toss into saucepan.
Put on medium heat (err on the cooler side here).
Wait until everything is melted and you are left with a golden mixture of butterfat with some scum on the surface and solids on the bottom.
Skim off the scum on top and pour off the clear fat.
Butter is an emulsion of fat and water with some solid bits tossed in.
The heating breaks the emulsion, you then let the water (which is not all that much) boil away, and get the pure butterfat.
Or some folks do it in the nuker, and that works too.
Good luck.