Put tomatoes, watermelon, cucumber, red pepper, garlic, olive oil, red pepper flakes, and basil into a food processor and process until smooth
Add salt and vinegar to taste
Serve garnished with more basil, if desired
I grew up eating tomatoes from the supermarket and was never enthused about them. Then, I moved to Alabama, and I tried fresh Slocomb tomatoes for the first time. Wow! Those were a game-changer. Now, I love preparing dishes with tomatoes when they're in season (and attending the annual Slocomb Tomato Festival is fun too)!