To provide a sponge composition which can be cooked at an advantageous cost without anxiety, without needing a special coating film-reinforcing measure or the like, even when containing a large amount of water, and without puncturing on heating cooking such as oil cooking or baking, and to provide a food, such as croquette or pie, obtained by coating the sponge composition.

This sponge composition comprises sodium alginate, a salt and a thickening polysaccharide in amounts of 0.01 to 3.0 wt.%, 0.02 to 5.0 wt.% and 0.001 to 0.5 wt.%, respectively, on the basis of the total amount of the sponge composition.