Easy baked cat treats made with canned mackerel and eggs. Minimal ingredients, quick prep, and practical storage tips.
Safety first: Introduce new foods gradually and speak with your veterinarian before making major changes to your cat's diet.
Foods to avoid
Skip this recipe if your cat has a known sensitivity to fish.
Ingredients
Instructions
Preheat the oven: Set the oven to 350 degrees Fahrenheit and line a baking sheet with parchment paper so the mixture does not stick.

Drain the mackerel: Open the can and pour off all the liquid into the sink. Flake the fish with a fork directly in the can to remove any large bones if present.

Mash the fish: Transfer the drained mackerel to a bowl and mash thoroughly with a fork until it breaks into small flakes with no large chunks remaining.

Add the eggs: Crack both eggs into the bowl with the mashed mackerel and stir vigorously with the fork until the mixture becomes uniform and slightly sticky.

Spread on the sheet: Scoop the mixture onto the parchment-lined baking sheet and use the back of a spoon to press it into an even layer about one quarter inch thick.

Bake until firm: Place the sheet in the preheated oven and bake for 18 minutes until the surface feels dry and lightly golden at the edges.

Cool and cut: Remove the sheet from the oven and let the baked layer cool completely on a rack before slicing into small squares with a sharp knife.

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Tips & serving
Give one or two small squares at a time as an occasional treat alongside regular food. Major diet changes should be discussed with a veterinarian.
- Gives cats a fish-based snack they can pick up easily
Storage
Substitutions
Swap mackerel for canned salmon if that is what is on hand.
Cats recipe FAQ
Can I serve this treat every day?
Treat it as an occasional extra, not a meal plan. Give one or two small squares at a time as an occasional treat alongside regular food. Major diet changes should be discussed with a veterinarian.
Is mackerel okay for cats?
This recipe uses mackerel in a small, cat-appropriate amount. Skip it if your cat has a known sensitivity, and read the foods-to-avoid note on this page before serving.
How long does Mackerel Egg Cat Squares keep?
Keep in an airtight container in the refrigerator for up to five days. Freeze extras in a single layer then transfer to a bag for up to two months.
How should I introduce this treat?
Start with a taste-size portion next to your cat's usual food, and hold off on serving more until you have seen that it agrees with them.
Sources