Step 1

Place the onions, garlic, tomato paste, canola oil and thyme in a bowl and microwave, stirring occasionally, till onions are softened, about 4-5 minutes. Add to the slow cooker

Step 2

Add beef broth, Worcestershire and tapioca, and stir to combine.

Step 3

Season cut of meat with salt and pepper and place the meat in the slow cooker on top of the onion mixture.

Step 4

Nestle in potatoes, parsnips and carrots around the cut of meat, cover and cook on low for 8 hours or high for 5-6 hours.

Step 5

Remove beef from slow cooker and place on a platter. Place vegetables in a large bowl and toss with melted butter. Place vegetables on platter and serve.