Briny, puckery, buttery piccata—but with lightly dredged and browned mushrooms instead of chicken or veal. Using two types of fat—oil and butter—is essential here. Sear the mushrooms in oil over high heat so they get nicely crisped and their flavor intensifies, then finish the sauce with a couple of tablespoons of butter. The last hit of silky sweet fat complements the mushrooms’ earthy flavor, while the lemon juice, olives, capers, and parsley perk it all up.
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Ingredients
4 servings
1
lemon
4
Tbsp. extra-virgin olive oil, divided
12
oz. mixed mushrooms (such as crimini, shiitake, and/or maitake), cut or torn into large pieces if needed
1
tsp. all-purpose flour or cornstarch
Kosher salt
1
large shallot or 1 small red onion, finely chopped
3
garlic cloves, thinly sliced
½
cup dry white wine
½
cup Castelvetrano or other olives, crushed, pits removed
1
Tbsp. drained capers
2
Tbsp. unsalted butter, cut into pieces
Freshly ground black pepper
Parsley leaves with tender stems (for serving)
Preparation
Step 1
Using a sharp knife, slice lemon into very thin rounds, (aim to get about 6–8 thin slices); remove seeds from rounds. Set remaining piece of lemon aside.
Step 2
Heat 3 Tbsp. oil in a large skillet over medium-high. Toss mushrooms with flour in a small bowl, then cook, tossing occasionally, until browned and crisp all over, 6–8 minutes. Season with salt and transfer to a large plate.
Step 3
Add remaining 1 Tbsp. oil to same skillet and reduce heat to medium. Cook shallot, stirring often, until softened, 2–3 minutes. Add garlic and cook, stirring often, until softened and beginning to turn golden around edges, about 4 minutes. Add wine, olives, capers, and lemon slices. Cook, swirling pan occasionally, until wine is mostly evaporated, about 2 minutes. Add butter and swirl skillet continuously until butter is melted and emulsified into sauce. Squeeze in 1 Tbsp. lemon juice from reserved lemon. Taste sauce and season generously with salt and a few grinds of pepper.
Step 4
Return mushrooms to skillet and cook, tossing and adding a splash of water to loosen sauce as needed, just until well coated.
Step 5
Top mushroom piccata with parsley just before serving.
