There are three egg grades: AA, A, and B. When it comes to frying, aim for grades AA or A because you want your fried eggs to have thick whites and clean yolks.
Using fresh eggs ensures delicious fried eggs. An egg that is not fresh tends to spread thinly across the entire pan, affecting flavor and your ability to flip it.
A good non-stick pan with a thin Teflon coat is a safe bet for frying eggs. Alternatively, you could use a well-seasoned cast iron pan or an enameled cast iron pan.
If you like your fried egg crispy and browned at the edges, butter is a good option. However, canola and vegetable oil have high smoke points, making them ideal for frying eggs.
If you’re using oil, heat the pan before you add the oil. Eggs fried with butter require a relatively cool pan; cook them on low heat — around 275 to 300 degrees F.