"After collaborating with S.K.Y.’s chef on two restaurants, former Chicago Bear Israel Idionije continues his restaurant opening streak with this South Loop spot, this time with theOliver’steam. Buttercup is a South Loop cafe by day and amaro-focused bar by night. In the morning you can expect pastries like cinnamon rolls and croissants, while their short evening menu has dishes like truffle pizzetta and roasted pork collar." - John Ringor