A food-cooking apparatus having a bowl and a drainer configured to be substantially the same size for stacking one of the bowl and the drainer within the other, and attaching means for movably attaching the drainer and the bowl to one another to move from a retaining position wherein one of the drainer and the bowl is stacked within the other to a flipping position wherein the drainer and the bowl are facing each other, and the rims of the bowl and the drainer are sealingly compressed against each other.