1. Heat butter in a pan. Fry cod fillet about 2-3 mins for each side. Then dish out.

2. Fry asparagus till done. Sprinkle a little salt. Then dish out.

3. Heat 1 tsp butter in the pan. Add 1/2 tsp flour and 3 tsp milk. Cook with low heat till sauce becomes condensed. Add in some salt and black pepper. Stir evenly.

4. Pour sauce onto the cod in the plate.