2 ounces (60 grams) unsweetened chocolate, coarsely chopped
1/2 cup (113 grams) unsalted butter, cut into pieces
1 cup (200 grams) granulated white sugar
2 large eggs, at room temperature
1 teaspoon pure vanilla extract
1/4 cup (30 grams) all-purpose flour
1/4 teaspoon salt
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