~175g matzo (5 matzo), broken into rough pieces 2 large leeks, white and light green parts only, thinly slices 4-5 scallions, chopped 5 eggs 250g milk 150g kashkaval cheese (or similar), grated 100g feta, crumbled 1 tbsp lemon juice, or a little vinegar 1/2 tsp baking powder A pinch of MSG (skip it if you avoid it) Plenty of black pepper Chili pepper, to taste Salt to taste (depends on the saltiness of the cheese