If a jar of jam is stagnant in the refrigerator, which has not been given the attention of households, it is worth disposing of it and preparing an original manna. Thanks to the jam, the crumb will have a slightly stringy, caramelized texture, flavored with pieces of fruit or berries, depending on the type of jam. During the preparation of the dough, do not forget to let the semolina brew in kefir for at least half an hour - the cereal will soften and provide the manna with that very crumbly-friable texture.