Preheat oven at 100°C .

Pat dry the beef ribs with kitchen towel. Combine garlic, Cajun spice, thyme, rosemary, olive oil, salt and black pepper. Marinate and rub it evenly all over the beef rib.

Place the beef ribs at baking tray. Roast the beef for 8 hours at 100°C.

Mix well the bread crumbs, thyme, rosemary and butter in a bowl.

Layer the crusts on the beef ribs when the beef is cooked.

Continue the bake until the crusted top turns golden brown.