Spanish Omelette (Tortilla Española) vs Reibekuchen / Kartoffelpuffer (German Potato Pancakes)

Both dishes rely on potato, onion and egg, but to very different ends. The tortilla slices its potatoes and onion thinly and cooks them gently in generous olive oil until soft and sweet without browning, then binds them in six eggs for a thick, tender cake that is golden outside and just set within. Reibekuchen grate potato and onion coarsely, squeeze them dry and bind them with one egg and flour, then fry thin discs until crisp, seasoned with black pepper and nutmeg. One is soft and egg-rich; the other is all crunch.