Make sure all of the oil is blended in before adding more.
Add the onion, and vinegar.
Stir again, until all of the vinegar is absorbed.
Add the sugar, basil, oregano, garlic, salt and pepper.
Store the mixture in a pint sized canning jar in the fridge. This may also be prepared by whirling everything together in a blender until it is smooth. Try it on your favorite salads, and also on baloney sandwiches, and in pita bread sandwiches. Excellent.