Season chuck roast with salt and pepper and sear in skillet, about 2 minute a side till golden brown
Put seared chuck roast in a zip lock bag (or vacuum bag), add garlic to the bag and seal
Submerge sous vide in water and bring temperature to 137F. Drop the bag in the water and set sous vide timer to 24-30 hours (I did 26 hours)
When sous vide is complete, let beef to cool, either by placing in ice bath or in refrigerator depending on timing.
Remove liquid from the bag and pour into a small sauce pan. Cook to almost reduced to paste, add beef stock and let cook to the thickness of liking, add any spice or herb as desired
Pour sauce through a strainer, add fresh chive, etc to taste
Preheat oven to 475F
Once the meat is completely dry, brush on egg white. Then liberally rub on salt and pepper mixture to well coated on both sides
Bake in oven for 10 minutes.
Cut to thin slices and serve warm.