Bring a large pot of water to a boil. Add tomatoes, simmer for 10 seconds
and drain. Peel, core and halve tomatoes, discarding seeds and liquid.
Chop tomato pulp finely and place in a medium bowl. Add sugar, and season
with salt and pepper to taste.
Add garlic and olive oil, and whisk until blended. Cover with plastic
wrap, and allow to sit at room temperature for at least 30 minutes and
up to 8 hours. Discard garlic.
Bring a large pot of lightly salted water to a boil, and add spaghetti.
Cook until al dente, and drain well. Add tomato mixture to hot pasta,
and mix until pasta is evenly coated with sauce. Serve immediately.