Step 1

In a 12-quart pot heat 1 tablespoon oil over medium-high heat. Add half of the beef cubes. Cook and stir until browned. Transfer beef to a bowl. Repeat with remaining beef and 1 tablespoon oil. Return all beef to pot. Add broth. Bring to boiling; reduce heat. Simmer, covered, about 75 minutes or until meat is tender.

Step 2

Add tomatoes, carrots, sweet potatoes, corn, onions, poblano peppers, jalapeño peppers, garlic, salt, chili powder, and black pepper to meat mixture in pot. Bring to boiling; boil, covered, for 5 minutes.

Step 3

Ladle beef and vegetables into hot clean 1-quart canning jars, filling each halfway. Add hot broth to each jar, leaving a 1-inch headspace. Wipe jar rims; adjust lids and screw bands.

Step 4

Process filled jars* in a pressure canner at 10 pounds pressure for weighted-gauge canner) or 11 pounds pressure for dial-gauge canner for 75 minutes, adjusting for altitude. Allow pressure to come down naturally. Carefully remove canner lid; cool jars in canner 10 minutes. Remove jars from canner; cool on a wire rack. Check lids for seal after 24 hours.

Step 5

to serve, place contents of jar in a medium saucepan. Bring to a rapid boil. Boil, covered, for 10 minutes (add 1 additional minute for each additional 1000 feet of elevation).