"Rustic and flavorful, this cremini and shiitake mushroom galette is filled with sharp blue cheese and wrapped in a flaky sour cream pastry dough...."
INGREDIENTS
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1 and 1/4 cups (150 grams) unbleached all-purpose flour
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1/2 teaspoon kosher salt
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1/2 cup (1 stick; 115 grams) cold unsalted butter, cut into small cubes
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1/4 cup (60 grams) cold full-fat sour cream
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2 teaspoons freshly squeezed lemon juice
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1/4 cup (60 mL) ice water
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1 tablespoon extra virgin olive oil
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1 lb (16 oz) cremini (Baby Bella) mushrooms, stemmed, and thinly sliced
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1/2 lb (8 oz) shiitake mushrooms, stemmed, and thinly sliced
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1 tablespoon unsalted butter
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1/2 large yellow onion, finely julienned
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2 large garlic, finely minced
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4-5 sprigs fresh thyme, plus more for garnishing
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1 sprig fresh rosemary
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1/2 cup dry sherry
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kosher salt
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freshly ground black pepper
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1.5 oz aged blue cheese (eg. Point Reyes, Stilton) or 3 ounces aged goat cheese, crumbled
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1 large egg
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1 teaspoon whole milk