About the Product Amul Masti Spice Buttermilk is a natural milk-based drink which will refresh you immediately on a hot summer afternoon. The slightly sour liquid spiced up with various Indian spices is a healthy alternative to sodas and cold drinks during summers. Ingredients Amul Masti Spice Buttermilk is made with milk solids, salt, common salt, spices, condiments and permitted stabilizer.