In a large ceramic bowl, combine tomato sauce, ketchup, vinegar, Worcestershire sauce and horseradish.
Using a wire whisk, blend until all ingredients are well incorporated.
Add bell pepper, celery and garlic, and season to taste with salt and hot sauce.
Continue to blend until all seasonings are evenly mixed throughout the sauce.
Adjust seasonings to your taste should more sweetness or tartness be desired.
Cover and refrigerate overnight for flavors to develop.