For a richer flavor, you can use a combination of butter and lard for the shortening.
If using unsalted shortening, ensure you add enough salt to the dough and the fish filling.
You can add a pinch of sugar to the dough if you prefer a slightly sweeter crust, but keep it minimal for savory dishes.
The higher oven temperature ensures the crust browns quickly while keeping the fish moist. Adjust time based on the thickness of your fish steaks.
Leftovers can be stored in an airtight container in the refrigerator for up to 2 days. Reheat in the oven to maintain crispiness.