Prepare the ingredients by peeling and boiling the potatoes until fork-tender. Drain and transfer them to a mixing bowl. Mash them until smooth and creamy.

In a separate pan, sauté the chopped onion and minced garlic until softened and fragrant. Add the cooked chicken or ham and cook for a few minutes. Remove from heat and set aside.

Combine the sautéed onion, garlic, and meat mixture with the mashed potatoes. Season with salt and pepper, and mix well.

Shape the croquettes by taking spoonfuls of the mixture and forming them into croquette shapes. Place them on a baking sheet.

Prepare two shallow dishes: one with flour and another with bread crumbs. Beat the eggs in a separate bowl. Coat each croquette in flour, dip it in the beaten eggs, and then roll it in the bread crumbs until fully coated. Place the coated croquettes back on the baking sheet.

Preheat the air fryer to 400°F (200°C) and place the coated croquettes in a single layer in the air fryer basket. Cook for 12-15 minutes, or until golden brown and crispy. Flip them halfway through for even cooking.

Once cooked, remove the croquettes from the air fryer and let them cool slightly. Serve hot with your favorite dipping sauces.