Simmer chicken livers in a little water until tender enough to mash. Boil and mash potatoes plain with enough water to be soft. Drain and mash mackerel. Mix potatoes, liver, and mackerel well. Add eggshell and puncture fish oil caps to add oil to food. Add water if needed for nice soft cat food consistency.

Serving 1/4 to 1/2 cup twice a day.

Freezes well.