Heat olive oil in a large skillet over medium-high heat and sear beef cubes until browned on all sides.
Place halved potatoes in the bottom of a 6-quart slow cooker.
Transfer seared beef to the slow cooker, layering it over the potatoes.
In a small mixing bowl, combine melted butter, minced garlic, thyme, rosemary, salt, and pepper.
Pour the garlic butter mixture and beef broth over the contents of the slow cooker.
Cover and cook on Low for 7 to 8 hours or High for 4 hours until the beef is fork-tender.
Garnish with fresh parsley and serve immediately.