On saute mode, brown the ground beef with the minced onion and garlic powder. If needed, drain off excess fat. If you use a leaner ground beef, you won't need to drain the fat. Also, you could brown the ground beef in a skillet and then add to the IP insert.
Add the pinto beans, diced tomatoes, tomato sauce, chili powder, ground cumin and beef broth.
Set on Chili/Beans mode, or Manual, High for 30 minutes.
Let vent naturally.
Serve Instant Pot Cowboy Chili with sour cream and shredded cheese garnish, and side salad and/or cornbread.
If you wish to make this as a freezer meal, you can learn more about "Freezer to Instant Pot Chili" here.