Peel potatoes, apple, and onion.

Grate the potatoes, apple, and onion using a meat grinder, food processor, or blender.

Pour off the excess water from the grated potatoes.

In a medium bowl, lightly beat the eggs.

Add the grated potato mixture, salt, and matzo meal to the beaten eggs.

Mix well to combine.

Pour about 1 inch of vegetable oil into a large skillet.

Heat the oil over medium-high heat until a few drops of water sizzle when they hit the oil.

Drop the potato mixture by tablespoons into the hot oil.

Brown the latkes to a golden color on one side.

Flip the latkes over and brown the other side.

Remove the latkes from the skillet and place them on a double or triple layer of paper towels to drain excess oil.

Serve hot with applesauce and sour cream.

If not serving immediately, keep warm in a 190°F oven.