This looks amazing! I try to keep dehydrated morels on hand, because they are so luscious. I’ve never tried them with bearnaise, but I LOVE bearnaise! I keep working at improving my bearnaise sauce making skills. I have yet to come up with a foolproof recipe, though each time I get closer. Two weeks ago I made it to top a prime ribeye and lump crab for our anniversary dinner (belated celebration). It was very very good. Consistency was correct but I missed something in the flavor a tiny bit. Probably not enough tarragon in the infused vinegar I made.
Mmmmmmmm.....the crab/steak combo sounds luscious.
Maybe use a bit more demi glace in the sauce?