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1
Preheat oven to 325 degrees F.
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2
In a small saucepan, whisk together 1 Tablespoon of granulated sugar and cornstarch until well blended. Stir in cold water and add raspberries. Cook over medium heat whisking often, until raspberries break down and sauce thickens, about 5 minutes. Remove from heat and force sauce through a fine mesh strainer into a bowl to remove seeds, set the bowl aside.
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3
In a large mixing bowl, with an electric mixer, beat together cream cheese and granulated sugar until fluffy, about 1 minute. Mix in egg and egg white. Add vanilla and lemon juice. Set mixture aside.
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4
Melt white chocolate with cream in a double boiler until melted and smooth, or melt in a microwave safe bowl in the microwave on 50% power in 30 second intervals, stirring after each interval until melted and smooth. Add melted chocolate mixture to cream cheese mixture and blend until smooth.
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5
Pour 2/3 cup of the cheesecake mixture into the Oreo crust and spread evenly over bottom. Drizzle or spoon 2 Tablespoons of raspberry sauce over that. Slowly ladle the remaining cheesecake mixture over the drizzled raspberry sauce, covering all the raspberry sauce (you just don't want it to show through). Swirl cheesecake with a toothpick or knife (you are just swirling that inside layer of sauce for now, be careful not to let the sauce show through). Carefully jiggle the pan to even out the top.
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6
Now, fill a clean medicine syringe with raspberry sauce and begin to pipe small dots of the raspberry sauce around the outside of the top of the cheesecake. Then pipe small dots in another circle just inside of the first circle of dots. Do the same thing, continuing to pipe dots until you get to the center of the cheesecake (see related blog link for photos). Take a toothpick or sharp pointy knife and beginning with the center circle, run the toothpick through the center of each circle, creating a heart shape (don't lift the toothpick out until you finish the last circle).
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7
Bake cheesecake for 40 minutes, then turn oven off and leave cheesecake in the oven for 10 more minutes. Remove from oven and allow to cool. Cover with saved pie crust lid and refrigerate until fully set about 6 hours. Top slices with remaining raspberry sauce and optional sweetened whipped cream (for extra indulgence.
