Chop onion, peppers & garlic, wash and remove stems and tails from radishes.
In a large skillet brown the stew meat in the cooking oil.
Transfer to slow cooker, dutch oven or casserole dish.
Place onions and garlic in the same pan, allow to become translucent, add 6 oz of Stout and deglaze the pan (getting all the meaty bits out of the pan)
Pour Stout mixture over the beef. Add peppers, carrots and radishes to the beef mixture.
Add remaining Stout and beef broth.
Cook in slow cooker low for 6-8 hours or high for 3-4 hours until beef is tender.
Bake at 300F for 3-4 hours until meat is tender. Thicken sauce with xanthan gum if that is your preference.
Notes
For those following Trim Healthy Mama this is an S meal