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1
Preheat oven to 350 degrees F.
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2
Lightly grease a 13 by 9-inch baking pan.
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3
In a large bowl, combine the cake mix, 1 egg, and 1 stick melted butter, and stir until well blended.
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4
Pat mixture into prepared pan and set aside.
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5
In a stand mixer, or with a hand mixer, beat the cream cheese until smooth.
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6
Add the remaining 2 eggs, and the cocoa powder.
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7
Lower the speed of the mixer, and add the powdered sugar.
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8
Continue beating until ingredients are well mixed.
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9
Slowly add the remaining 1 stick of melted butter, and the vanilla, continuing to beat the mixture until smooth.
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10
Stir in nuts with a rubber spatula.
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11
Spread filling over cake mixture in pan.
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12
Bake for 40 to 50 minutes.
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13
Be careful not to overcook the cake; the center should still be a little gooey when finished baking.
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14
Let cake partially cool on a wire rack before cutting into pieces.
