In medium bowl, soak tomatoes in buttermilk at least 30 minutes (or as long as overnight).

In large bowl, mix flour, cornmeal, kosher salt and pepper. Using tongs or fork, remove tomato slices from buttermilk and coat with cornmeal-flour mixture.

In 12-inch cast iron skillet, add oil and heat over medium-high heat. Place tomato slices in skillet in batches and fry until golden brown on both sides.

Place fried tomatoes on paper towel-lined plate and sprinkle with sea salt. Place tomatoes on serving plate and garnish with cheese, caviar, if desired, and purslane.

Serve immediately with Kendall-Jackson Vintner’s Reserve Sauvignon Blanc. The crisp Sauvignon Blanc matches the acidity in the tomatoes.