1.5 pounds green tomatoes – firm, unripe; sliced 0.5-inch thick
2 teaspoons kosher salt
0.75 cups all-purpose flour
1 cups buttermilk
1 large egg – beaten
1 cups cornmeal
1 teaspoons black pepper – freshly ground
0.25 teaspoons cayenne pepper
2 cups peanut oil
lemon wedges – for serving
Instructions
Trim the stem ends, then slice the green tomatoes into 0.5-inch rounds.
Lay the slices on a wire rack or paper towels and sprinkle with 1 teaspoon kosher salt; let stand 15 minutes to draw out moisture, then pat dry well and reserve the remaining 1 teaspoon salt for finishing.
Set up three shallow dishes: put the all-purpose flour in the first; whisk the buttermilk and beaten egg in the second; mix the cornmeal, black pepper, and cayenne pepper in the third.
Pour the peanut oil into a large skillet to about 0.5 inch depth and heat over medium-high to 350°F (175°C).
Working in batches, dredge tomato slices in flour, shake off excess, dip in the buttermilk-egg, then press into the cornmeal mixture to coat all sides.
Fry coated slices in hot oil without crowding until deep golden and crisp, 2–3 minutes per side; adjust heat to maintain 325–350°F. They’re done when the crust is well browned and the tomatoes are just tender when pierced.
Transfer to a rack to drain and sprinkle lightly with the reserved salt. Serve hot with lemon wedges.