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1
Preheat Oven to 400 degrees.
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2
Melt the chocolate in the top of a double boiler, over hot water.
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3
Combine 3/4 cup flour, 2 tablespoons sugar and salt.
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4
Cut in butter until particles are fine.
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5
Stir in 2 tablespoons chocolate.
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6
Press into the bottom of a 9 inch springform pan.
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7
Bake for 10 minutes.
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8
In a large mixing bowl, cream 1 cup of sugar and the cream cheese.
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9
Blend in 1/4 cup flour and the vanilla extract.
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10
Add the egg yolks and beat well.
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11
Blend in the sour cream.
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12
In a separate bowl, beat the egg whites until soft peaks form.
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13
Fold the beaten egg whites into the cream cheese mixture, making sure it is thoroughly mixed.
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14
Combine the remaining chocolate mixture with 1 3/4 cups of the cream cheese mixture.
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15
Pour 1/2 of remaining cream cheese mixture into prepared crust.
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16
Spoon 1/2 of chocolate mixture over the top of the cream cheese mixture in the crust.
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17
Pour the remaining cream cheese mixture over the top of this and then spoon on the remaining chocolate mixture.
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18
Cut through the batter with a spatula to create the marble effect.
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19
Put the cheesecake into the 400 degree oven and immediately turn the oven down to 300 degrees.
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20
Bake for 1 hour.
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21
Turn the oven off and let the cheese sit in the closed oven for 1 hour.
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22
Cool on a rack away from drafts for 2-3 hours.
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23
Chill at least 6 hours before serving.
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24
To cut, use a wet, hot, sharp knife.
