"This moist, deep, rich chocolate cake is filled with a creamy, light peanut butter frosting and chopped peanut butter cups, and it's topped with a luxurious chocolate ganache...."
INGREDIENTS
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For the Cake:
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1 cup all-purpose flour
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½ tsp salt
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½ tsp baking soda
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½ cup unsweetened cocoa (regular or Dutch process)
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2 ounces good-quality chocolate, chopped (60% or more cocoa content)
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¼ cup neutral flavor oil (I used cocoa oil, melted and cooled)
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1 cup granulated sugar
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2 large eggs at room temperature
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2 large egg yolks at room temperature
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2 tsp vanilla extract
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⅓ cup sour cream or Greek-style yogurt
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½ cup warm water
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1 tsp instant espresso powder
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For the Peanut Butter Frosting:
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1 cup (16 tbs) unsalted butter, softened
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1 cup smooth peanut butter
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1½ cups confectioners' sugar
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⅛ tsp Salt
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1 tsp vanilla extract
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2 tbs whole milk
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For the Ganache:
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4 ounces chocolate, chopped
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4 fluid ounces heavy cream
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2 tsp vanilla extract
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To Assemble the Cake:
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8, full-sized peanut butter cups, unwrapped and each candy cut into 6 pieces
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mini-peanut butter cups for garnish (optional)