Preheat the oven to 350°.

Arrange the tomato halves cut side up and close together on a baking sheet, season with salt and pepper.

In a bowl, combine olive oil, garlic, and herbs. Drizzle over tomatoes and bake until the tomatoes are soft and shriveled but still retain some moisture, 1-2 hours or more.

Let cool completely. Tomatoes can be stored in a glass jar, cover tomatoes with olive oil, add a fresh sprig of thyme, seal and refrigerate.