Step 1
Place garlic and 1 pinch kosher salt into a mortar and pestle; grind garlic until it forms a paste. Mix olive oil into garlic.
Step 2
Place roast into a baking dish. Brush garlic paste on one side of the roast. Season generously with 1 teaspoon kosher salt.
Step 3
Combine peppercorns in a small bowl. Press ground peppercorn mixture generously onto roast. Flip meat and repeat brushing with garlic paste and seasoning with 1 teaspoon kosher salt and peppercorn mixture.
Step 4
If desired place roast on a rack over baking dish and refrigerate uncovered overnight to dry out. The next day remove and let meat stand 1 hour to reach room temperature.
Step 5
Melt butter in a large ovenproof skillet; turn off heat. Place roast into hot butter and flip to coat both sides. Season with more salt if desired.
Step 6
Preheat oven to 450 degrees F (230 degrees C).
Step 7
Roast meat in skillet in the preheated oven for 15 minutes. Remove meat from oven and flip in skillet.
Step 8
Turn oven down to 200 degrees F (95 degrees C). Roast meat until pepper crust is lightly browned and an instant-read meat thermometer inserted into the center of the roast reads 130 degrees F (54 degrees C) about 15 more minutes.
Step 9
Transfer roast to a platter and tent loosely with aluminum foil. Let roast stand at least 15 minutes.
Step 9
Place skillet with pan drippings over medium heat; whisk in flour until smooth. Cook whisking constantly for 2 minutes to remove raw taste from flour. Whisk in veal stock.