Pound steaks to 0.5 cm thick. Season both sides with salt and pepper.
Whisk buttermilk and eggs in one bowl. In another, mix flour, spices, salt, and pepper.
Dredge in flour, dip in buttermilk, then coat again in flour. Press to adhere.
Heat 1.25 cm oil over medium-high. Fry steaks 3–4 minutes per side until golden. Drain on paper towels.
Leave 30 ml oil in pan. Stir in flour, cook 1 minute. Whisk in milk, simmer 5–7 minutes until thick. Season to taste.
Plate steaks, top with hot gravy, and serve immediately.