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										In a the same bowl, beat the cream cheese and pumpkin until smooth. 
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										Add the eggs, vanilla, and butter, and beat together. 
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										Slowly add powdered sugar, pumpkin pie spice and mix well. 
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										Spread pumpkin mixture over cake batter and bake for 45 to 50 minutes, until the center is mostly set. 
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										If desired, sprinkle with powdered sugar or serve with whipped cream.