"Coziest dinner ever...."
low-sodium beef broth
tomato paste
Worcestershire sauce
cornstarch
small potatoes, scrubbed and halved
carrots, peeled and cut crosswise into 2" pieces
medium yellow onion, cut into 1/2" wedges
cloves garlic
sprig rosemary
(3.5 lb.) beef chuck roast
Kosher salt
Freshly ground black pepper