Gruel dream meaning is explained below using 2 different sources. Each interpretation is shown with its source.
Interpretation 1 — Internet Archive - Anonymous
If you dream of eating it, do not put yourself in the power of anyone who is addicted to strong liquors, or you may have cause to regret it.
Source: Mystic Dream Book • Author: Internet Archive - Anonymous
Interpretation 2 — Ibn Seerin
(See Porridge)
Source: Islamic Dream Interpretation • Author: Ibn Seerin