Step by step

Beat the eggs in a bowl with a hand whish, adding a little salt

Tips
When you come to fill the cups with the muffin mixture, which contains baking powder, take care not to do so to more than three-quarters of their capacity. As they cook the muffins will rise, partly overflowing their cups and making them slightly deformed.
Trivia
Feta is a cheese made with sheep's milk. However, you can find this lovely traditional Greek cheese made with 20% goat’s milk.