To obtain an easily usable solid fat food such as honey-containing butter.

The honey-containing butter 1 as this solid fat food is produced by homogeneously mixing a food material mixture comprising butter and honey with nitrogen gas. Many fine voids 3 are formed in the food material mixture 2 with the nitrogen gas. The voids soften the honey-containing butter 1 even at a low temperature in a refrigerator, etc. Since the honey-containing butter is thereby solidified so as not to be hard, the honey-containing butter 1 stored at a low temperature can immediately and easily coated on a food material such as bread.