Pat cube steaks dry with paper towels.
In a bowl, mix flour, baking powder, garlic powder, paprika, salt, and pepper.
In a separate bowl, whisk together buttermilk and eggs.
Dredge each steak in the flour mixture, dip into the buttermilk mixture, then coat again in flour.
Let the coated steaks rest for 10–15 minutes.
Heat vegetable oil in a skillet to 350°F (175°C).
Fry steaks for 3–4 minutes per side until golden brown and crispy.
Remove and place on a wire rack.
For the gravy, keep 3 tablespoons of oil in the skillet and whisk in flour.
Slowly add milk while whisking until thickened.
Season with salt and black pepper.
Serve gravy over the crispy chicken fried steak.