In a warm skillet (or cast iron pot), heat oil. Braise sides of roast. Sprinkle salt and pepper. Sides will be done when you see seared marks.
Place roast with fat side up inside crockpot (or continue to cook in cast iron pot). Add bouillon cubes, french onion soup, tomato paste, carrots, potatoes, and 4 cups of broth.
Stir in onion powder, sage, and red pepper. Add salt and pepper. Cook for at least 6 hours. If cooking in a cast iron pot, place lid on, bake for 275 degrees for 2 hours. Add a crusty piece of bread :)