Prep: 1. Shell pistachios (if necessary) and coarsely grind them in a mini food processor or coffee grinder (you can also chop finely by hand). Make: 1. Get out two shallow bowls. 2. Bowl #1 - Whisk the egg and mustard. 3. Bowl #2 - Combine finely diced pistachios, corn meal and salt and pepper to taste. 4. Heat a few tablespoons of olive oil over medium high heat in a large skillet. 5. While oil heats, dip the fish into the egg followed by the cornmeal/pistachio mixture. 6. Place fish into the skillet and fry each side about 4 minutes. Reduce heat if crust gets too brown. Fish is done when the crust is browned and the fish flakes easily.
Check out our tips for buying and cooking fish here - http://blog.gatheredtable.com/2015/06/21/a-beginners-guide-to-how-to-buy-and-cook-fish/ Looking for a good substitute? Many fish types are extremely versatile, check out our recommended substitutions here - http://blog.gatheredtable.com/2015/06/21/recipe-hacking-how-to-substitute-different-types-of-fish/