Preheat your oven to its lowest ‘warm’ setting.
Meanwhile, heat oil to coat the bottom of a large heavy-bottomed skillet over medium-high heat.
Blend flour, salt, pepper, paprika, and chili poweder in a bowl.
Cut beef into slices ½-3/4 inch thick. Season with salt and pepper and dredge in the flour mixture.
Lay onto a flat surface, and pound beef till half the thickness, using a meat tenderizer.
Dredge again in the flour mixture and gently lay in hot fry oil, not overcrowding the pan.
Fry on both sides until golden brown and crisped, 3-4 minutes per side.
Transfer to a baking tray with a wire rack placed on top and keep in warm oven until all are fried.