How to Make It
Cut about 10 (1-inch-deep) slits into the surface of the roast. In a high-powered blender, blend all remaining ingredients. Pour half of the oil mixture into the bottom of a 6-quart slow cooker. Place the roast into the slow cooker; coat the beef with the remaining oil mixture. Cover and cook on LOW for 8 hours.
Remove the roast from the slow cooker; cut into slices. Place the drippings in a saucepan over medium heat; simmer for 15 minutes or until reduced and thickened, skimming off the fat as necessary. Serve gravy with the sliced beef.