INGREDIENTS
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6 tablespoons unsalted butter
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3/4 cup finely chopped onion
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3/4 cup finely chopped celery
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1 teaspoon kosher salt, divided
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1 tablespoon minced garlic
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1 (14-ounce) can artichoke hearts, drained and finely chopped
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1 cup Japanese (panko) bread crumbs
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2 teaspoons finely chopped lemon zest
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1/2 teaspoon freshly ground black pepper
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1 teaspoon dried oregano
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4 cups rock salt
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24 oysters on the half shell, with their liquor