8 oz smoked cod or haddock (finnan haddie)
3 tbsp butter
2 onions, coarsely chopped
2 carrots, coarsely chopped
2 ribs celery, coarsely chopped
3 tbsp all-purpose flour
3 cup milk, hot
1/2 tsp dried thyme or 1 tsp fresh
1 bay leaf
1 salt, pepper and Tabasco to taste
1 cup frozen peas
1 lb white fleshed fish fillets (haddock, cod, turbot, etc.) cut into 1" pieces
TOPPING
6 medium potatoes, peeled and quartered
2 tbsp butter
1 egg
2 tbsp milk