It's prime season for ripe peaches and heirloom tomatoes, which is what makes this recipe so simple to toss together because you don't need many ingredients when you're reaping the benefits of in-season fruits that are bursting with flavor.
In a small food processor, add all ingredients except the tomatoes and peach. Puree until very creamy, about 2 minutes.
Dollop the avocado mixture onto a serving plate and use the back of the spoon to spread the creamy mixture in a circular motion, leaving about 1 inch on the perimeter of the plate.
Add the tomato and peach slices, chives and basil. Serve chilled or at room temperature.
Store leftovers in a sealed glass container for up to 2 days.