Here is the recipe I use for ketchup :
Tomato Catsup
3 1/2c. Tomato sauce
1/4t. Celery seed
4T. + 2t. Sugar
1 3/4 t. Salt
1/4 t. Onion powder
1/4 t. Pepper
Dash cayenne pepper
4 T. + 2 t. Honey,or your favorite sweetener
4T.+ 2 t. Vinegar
2T. + 1 t. Lemon juice
Pour tomato sauce...