In Tibet, tea containing this substance, known as po cha or cha suma, is a popular drink.
In Morocco, smen is a form of this substance that is buried in the ground for a few months. In Tibet, tea containing this substance, known as po cha or cha suma, is a popular drink. Biochemically, its production involves changing a fat-in-water emulsion to a water-in-fat by (*) rupturing lipoprotein membranes surrounding fat globules. Hollandaise contains egg yolk, lemon juice and this ingredient. A clarified form of this food is known in India as ghee. For 10 points, name this dairy product you can spread on toast.
In Morocco, smen is a form of this substance that is buried in the ground for a few months.
butter or ghee [prompt on "fat"]