Finely chop the almonds, mentaiko, and anchovies.
In a bowl, mix the almonds, mentaiko, anchovies, and mayonnaise together.
Spread the mixture over cooking cookies (or baguette slices).
Bake in a preheated oven or air fryer at 180°C (356°F) for 5 minutes.
Finish by garnishing with parsley or herbs.