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1
Preheat oven to 475F degrees.
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2
Create a water bath by placing a large pan filled with about 1/2-inch of water into the oven while it preheats.
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3
A deep cookie sheet will work fine.
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4
Measure 1 1/2 cups of graham cracker crumbs into a medium bowl.
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5
Mix in 1/3 cup melted margarine.
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6
Press the crumb into a 9-inch spring form pan that has been lined on the bottom with parchment paper.
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7
Use a large metal spoon to compress the crumb mixture flat into the bottom of the pan.
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8
Wrap a large piece of foil around the bottom of the pan to keep the cheesecake in the water bath.
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9
Put the crust in your freezer until the filling is done.
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10
Use an electric mixer to combine the cream cheese with the sugar, sour cream, and vanilla.
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11
Mix for a couple minutes or until the ingredients are smooth and creamy.
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12
Whisk the eggs in a medium bowl and then add them to the cream cheese mixture.
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13
Blend the mixture just enough to incorporate the eggs.
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14
Place the white and semi-sweet chocolate in separate microwave-safe dishes and slowly melt them in the microwave.
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15
Split the mixture into half (use a second bowl).
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16
In one half, add the melted white chocolate; in the other half, add the melted semi-sweet chocolate and the Irish creme.
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17
Dump the darker mixture into the spring-form pan on top of the graham crumbs.
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18
Spread out the mixture then dump the second part (the white chocolate portion) of the mixture on top.
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19
Using a spatula, slowly swirl the two mixtures together.
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20
Be careful not to blend them together; rather just try to mix up the two parts so that there is a marble type look to it.
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21
Carefully place the cheesecake into the water bath in the oven.
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22
Bake for 12 minutes at 475F degrees, then turn the oven down to 350F degrees and bake for 50 to 60 minutes or until the top of the cheesecake turns a light brown or tan color.
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23
Remove the cheesecake from the oven to cool (usually around 10 - 15 minutes).
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24
When the cheesecake is cool, use the foil from the bottom to cover the cheesecake and chill it in the refrigerator for at least 4 hours (overnight is best).
