In a cup or small bowl, mix the sour cream smooth with 1 egg.
Add the remaining 7 eggs, mix thoroughly, and salt it.
Heat the lard or oil in a pan until hot.
Pour in the egg mixture, and cook over medium heat, covered, or in an oven at 180°C, until it sets and the bottom is lightly browned, about 10-12 minutes.
Once cooked, spread the ham cubes or the grated parmesan over one half, then fold the other half over it.
Let it stand for a few minutes, until the cheese melts (if using parmesan), then serve immediately.
Based on: Malatinszky Fanny szakácskönyve (a classic Hungarian cookbook), modernised. Calories and protein are estimated.