Preheat your oven to 40°C and place the steaks in it for 30 minutes to come to temperature. It is very important not to cook cold meat in a hot pan.
Season the meat on both sides with pepper and salt from the mill. Heat a pan on the stove and let a generous chunk of butter melt and foam in it. In the hot foaming butter, place the steaks and let them brown nicely on each side. Meanwhile, regularly spoon the foaming butter over them.
If you press your index finger into the meat, you can feel how it is cooked. If it is still very soft, it is 'bleu' or very rare, if it is slightly less tender, it is saignant, and as you let it cook longer and feel it getting firmer, it goes to à point (medium cooked) or bien cuit or well done.
Set the meat aside and make the green pepper sauce with fresh fries.
Serve with sliced tomatoes and homemade mayonnaise.
Tips
Bake the perfect steak later. Ask your butcher nice thick steaks of minus 2 cm if you like to eat saignant. 😉