Wash the girolles very carefully as they are fragile and break easily. Pat dry with a kitchen towel. If the girdles are large, just cut them in half, but they are better small and whole, Put the olive oil and a few drops of lemon into a bowl and marinate them for 30 minutes.
Put a non-stick pan over a medium heat, add a drizzle of olive oil. Drain and sauté the gi