Barbecue Sauce - cooking recipe

Ingredients

2 qt. catsup
1 Tbsp. thyme
1 Tbsp. mustard
2 tsp. black pepper
1 1/2 Tbsp. celery seed
1 1/2 Tbsp. white mustard seed
5 Tbsp. Worcestershire sauce
5 Tbsp. liquid smoke
1/4 c. vinegar (cider)
5 bouillon cubes
1 3/4 c. chopped celery
1 large chopped bell pepper
3 qt. water
2 1/2 Tbsp. salt
2 Tbsp. hot sauce
2 Tbsp. lemon juice
1 stick margarine
1 tsp. parsley
1 large onion, chopped
4 Tbsp. cornstarch, dissolved in a little warm water

Preparation

Combine all ingredients in a large pot.
Simmer for 6 hours.