Season the butterfly steaks on both sides with salt and pepper. Then fry them in the hot oil in a pan and then immediately place them in the hot oven at 180 ° C top / bottom heat for 20 minutes.
In the same pan - please do not wipe it - simmer the cleaned chanterelles briefly with a pinch of salt, pepper and sugar. Then deglaze with the cognac and simmer for about 2 - 3 minutes. Then add the cream, water and stock and reduce until creamy.
Finally, briefly heat the steaks again in the sauce for 2 minutes.