In a small nonstick pan over medium heat, melt butter (or heat oil). Crack egg into pan. Cover with a tight fitting lid and cook 3 minutes, or until white is set. Remove from pan and season with salt and pepper. In a small nonstick pan over medium heat, melt butter (or heat oil). Crack egg into pan. Cook 3 minutes, or until white is set. Flip and cook 1 minute more. Remove from pan and season with salt and pepper.  In a small nonstick pan over medium heat, melt butter (or heat oil). Crack egg into pan. Cook 3 minutes, or until white is set. Flip and cook 2 to 3 minutes more, until yolk is slightly set. Remove from pan and season with salt and pepper. In a small nonstick pan over medium heat, melt butter (or heat oil). Crack egg into pan. Cook 3 minutes, or until white is set. Flip and cook 4 to 5 minutes more, until yolk is completely set. Remove from pan and season with salt and pepper.