Season your center cut beef tenderloin with salt and sear over high heat on each side.
2-3 lbs center cut beef tenderloin, 1 tbsp salt
Brush with mustard then wrap in plastic wrap and place in fridge to rest.
1 tbsp mustard
Cut mushrooms, garlic, and shallots into a really fine dice.
600 g cremini mushrooms, 4 cloves garlic, 1 shallot
Cook mushrooms, garlic, and shallots in a pan with olive oil until dry and there is no more moisture. It should look like dry ground beef. Set aside to cool
Mix together crepe ingredients then add ½ cup of batter into a medium heat non stick pan and cook for 1-2 minutes each side.
½ cup flour, 1 large egg, ¾ cup milk
Lay down our crepes over plastic wrap.
Layer proscuitto on top of the crepes.
10 slices prosciutto
Pack on an even layer of the mushroom duxelles.
Add the beef tenderloin, and with the help of the plastic wrap, roll it up making sure it stays tight. Place in fridge for 30 minutes to set.
Roll out your large sheet or puff pastry. You will need enough to completely enclose the wellington in the fridge.
1 large sheet puff pastry
Place the wellington in the middle of the puff pastry and begin to roll, keeping it tight.
Brush the edge with egg wash to seal together all sides and cut off any excess pastry.
1 large egg
Brush with egg wash, top with salt and bake at 420F for 30-45 minutes.
Allow it to rest at least 1 hour before cutting into it.