Rinse the corned beef under cold water and pat dry.
Place onion quarters and carrots at the bottom of your crock pot.
Position the corned beef fat side up on top of the vegetables.
Sprinkle the seasoning packet (or your custom blend) over the meat.
Pour beef broth around (not over) the meat until it reaches about halfway up the sides.
Add bay leaves and garlic to the liquid.
Cover and cook on low for 9-10 hours.
During the final 3 hours, add baby potatoes around the meat.
In the last hour, arrange cabbage wedges atop everything else.
Corned beef is ready when it reaches 195°F internally and easily separates with a fork.