Tenderize: If your cube steaks aren't already tenderized, use a meat mallet to pound them to an even thickness.
Season Flour: In a shallow dish, combine the flour with garlic powder, onion powder, paprika, salt, and pepper.
Dredge: In another shallow dish, whisk together the eggs and buttermilk. Dip each steak first in the flour mixture, then in the egg mixture, and again in the flour mixture, ensuring a thorough coat.
Fry: Heat about 1/2 inch of vegetable oil in a large skillet over medium-high heat. Fry the steaks for 3-4 minutes per side or until golden brown and crispy. Drain on paper towels and keep warm.