Challenge Spreadable Butter is a combination of our highest quality butter and the finest canola oil. It comes out of the refrigerator soft enough for the most delicate of items. Its pliable texture goes on without waiting and offers a tasty alternative to weak and flavorless spreads. It's available in 8 oz and 15 oz sizes. The 15 oz. size has an addition of DHA Omega-3, which has been found to support healthy brain and eyes.