1. Place steaks between waxed paper and pound slightly with a mallet.
2. In small skillet, melt 1 tbsp butter and saute scallion for 2-3 minutes.
3. Stir in worcestershire, lemon juice, and parsley.
4. Keep warm.
5. In a medium-large skillet, melt 1 tbsp butter and brown steaks, about 2 minutes per side.
6. Season with salt & pepper.
7. Pour the onion mix over the steaks.
8. Pour the warmed cognac over the steaks and ignite.
9. If you let a firebug help with this step, do not let them double the cognac :).
10. Serve with pan juices poured over and sprinkled with green onion tops and lemon zest.