Increase heat to medium-low and add a scant 2 tablespoons of the oil to the skillet. Add 6 cakes; cook until impressively brown, about 4 minutes. Turn cakes over and continue to cook, drizzling in a teaspoon or so of oil if necessary (no need to measure) to keep them gently sizzling, until second side is impressively brown, another 4 minutes. Remove cakes from pan and keep them warm. Add remaining 2 scant tablespoons of oil to the skillet and cook remaining cakes. Serve warm.