Homemade French Dressing

Actually, I combined two recipes--this one and this one and tweaked it a bit:

1/2 cup of sugar
juice of 1/2 a lemon
1/2 onion, chopped coarsely
2/3 cups ketchup (one without high fructose corn syrup!)
4 tsp paprika
1/2 cup white wine vinegar (I am sure any vinegar will do)
2 tsp Worcestershire sauce
1/2 cup of olive oil
salt and pepper to taste

Blend everything but the oil and carefully add the oil little by little until desired consistency. Add salt and pepper if desired. I didn't, but I like things a little bland.

Tip: I used an old ketchup bottle and with used a funnel to transfer it in.