Heat up large skillet or a dutch oven. Add 2 TBS olive oil.
Add onions and celery and sautee for 2 minutes. Add garlic and sautee for additional 30 seconds.
Add the ground beef and brown thoroughly.
Add sugar, mustard, chili powder, Worcestershire sauce, salt, pepper, and cumin.
Mix well.
Add tomato paste, tomato dice, and water. Stir good.
Simmer for 30 minutes on low heat, uncovered. Use blender to blend sauce thinly.