Do I need to remove the trout skin?
Nope. The skin is the crispy jackpot. Just make sure it is very dry and you start skin-side down in a hot pan. If you truly hate skin, you can peel it off after cooking, but searing with skin on helps protect the flesh.
How do I know when trout is done?
It should flake easily and look opaque, but still juicy. If you use a thermometer, many cooks pull trout at 125°F to 135°F in the thickest part for moist, restaurant-style fish. For food-safety guidance, the FDA recommends 145°F for finfish. Choose what you are comfortable with, and remember the fish will rise a few degrees as it rests.
Can I use frozen trout?
Yes. Thaw overnight in the fridge, then pat very dry. Extra moisture is the enemy of crisp skin and glossy sauce.
My butter sauce broke or looks greasy. Can I fix it?
Yes. Lower the heat and whisk in 1 to 2 teaspoons of warm water or broth until it comes back together. Also, take the pan off the heat before you whisk in the final cold butter.
What can I swap for trout?
This method works great with salmon, Arctic char, or thin white fish like cod. Just adjust cook time based on thickness.
What kind of trout works best here?
Rainbow trout and steelhead-style fillets are perfect: quick-cooking and not too thick. If your fillets are extra thick (or you are working with lake trout), plan on a little more time and use a thermometer so you do not overcook.
Is there enough sauce for four servings?
It is a modest, glossy pan sauce that coats the fish and gives you a little extra for spooning over potatoes or rice. If you are serious about “sauce duty” with bread, you can double the sauce ingredients (broth, lemon, butter, capers) without changing the fish steps.