Step 1: Trim the Tenderloin
1:05
Take a thick centre-cut piece of tenderloin, around a pound and a half, and pull off the silverskin. Slide a thin knife under it, angle the blade up towards the membrane and draw it along.
Silverskin does not render. Leave it on and it shrinks in the oven, squeezing the beef out of shape inside the pastry.
Tip
Ask the butcher for a centre cut. The tapered tail end cooks faster than the middle and ruins an even pink slice. Watch this step












