Heating the butter like this causes the milk fats to solidify and caramelize, which is what makes up the delicious, amber-colored sediment that sinks to the bottom of the butter (pictured below).

Hanahana Beauty Amber Vanilla Shea Body Butter Sourced from Tamale, Ghana, these deeply moisturizing butters come in scents like amber vanilla, bamboo coconut, and (my personal favorite ...

Add sage leaves and cook until edges curl and butter is dark amber (do not burn), stirring and turning leaves occasionally, about 6 minutes. Transfer sage to paper towels. Add veal stock to brown ...

Keep the heat low and watch the butter carefully until it turns a deep amber color and smells nutty. You can substitute dried thyme for fresh, but reduce the amount to one teaspoon.