- 2 pounds Roma tomatoes, halved lengthwise
- 1/2 cup olive oil
- 1 clove garlic, crushed
- 1 tablespoon dried oregano
- 1 teaspoon white sugar
- 1 teaspoon salt
- Preheat oven to 250 degrees F (120 degrees C).
- Arrange tomatoes, cut side up, in a shallow baking dish; drizzle with olive oil and sprinkle garlic, oregano, sugar, and salt evenly atop.
- Bake in the preheated oven for 1 hour. Turn tomatoes over and roast until caramelized and very soft, 1 to 1 1/2 hours. Remove from oven and set aside to cool to room temperature, about 1 hour.
- Transfer tomato mixture to a blender or food processor; puree until smooth.