Heat oven to 350°F. In small bowl, beat 1/3 cup oil, the vinegar, brown sugar, garlic, 1 teaspoon salt and 1/2 teaspoon pepper with whisk. Arrange cherry tomatoes in single layer in ungreased rimmed large baking sheet. Drizzle olive oil mixture over tomatoes; toss to coat. Bake 40 to 45 minutes or until tomatoes are softened and brown in spots. Cool 15 minutes.