1.Preheat oven to 325.
2.Combine oil, 1/4 tsp salt, and tomatoes in large bowl; toss gently to coat. Arrange tomatoes skin side down, on a wire rack set inside a jelly roll pan. Bake at 325 for 3 hours. Cool slightly; peel. Discard peels.
3.Combine tomatoes, remaining 1/8 tsp salt, basil and remaining ingredients in a food processor; process until smooth.
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