"When a good ol' American candy bar veers French, it becomes a decadent dessert. Buttery pat-in-pan shortbread takes the place of mass-produced cookies and gets smothered with silken chocolate and from-scratch caramel, rich with fresh cream...."
INGREDIENTS
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1 cup (2 sticks) unsalted butter, room temperature, plus more for pan
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1/2 cup sugar
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1/2 teaspoon fine sea salt
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2 teaspoons vanilla extract
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2 cups all-purpose flour
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1 cup heavy cream
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4 tablespoons unsalted butter, cut into pieces
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3/4 teaspoon fine sea salt
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1 3/4 cups sugar
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1 pound milk, semisweet, and/or bittersweet chocolate (preferably 40–60% cacao), chopped
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2 tablespoons plus 1 teaspoon coconut or other neutral vegetable oil
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A candy thermometer