Hi Anja, Can i tell u my way? I melt the butter in medium high heat. In 10 minutes the butter melts and start to boil and u can see the bubbles on the top. You can hear the sound. After some time the sound reduces little by little and stops in one stage(very little sound is okay). Imediately remove from the fire and add 2tsp buttermilk with salt. It gives u big sound and aroma. I add buttermilk to remove the butter smell(my mom's way).

Kavi.