Forevermama's Chocolate Ripple Cheesecake

FOR THE CHEESECAKE

Step 1: Combine 1st 3 ingredients; press onto bottom and 3" up sides of a 9" springform pan (refer to note # 1).

Step 2: Combine 2 (8 ounce) pkg.'s cream cheese and 1/2 cup sour cream; beat at medium speed of an electric mixer until fluffy.

Step 3: Add 3 eggs one at a time, beating after each addition.

Step 4: Add 1 teaspoons vanilla and melted white chocolate (refer to note # 2), stirring just until blended. Spoon half of mixture over chocolate crust. Set other half aside.

Step 5: Combine 1 (8 ounce) package cream cheese and 1/4 cup sugar; beat at medium speed of an electric mixer until fluffy.

Step 6: Add 1 egg and 1/4 teaspoons vanilla; blend well. Stir in melted semisweet chocolate (refer to note # 2) and 1/3 cup sour cream. Spoon gently over white chocolate layer.

Step 7: Carefully spoon remaining white chocolate mixture over chocolate layer.

Step 8: Bake at 300 degrees fahrenheit for 1 hour - 1 1/2 hours or until cheese cake is almost set.

Step 9: Turn oven off, and partially open oven door (refer to note# 3). Leave cake in oven 30 - 45 minutes.

Step 10: Remove from oven; run knife around crust to loosen sides.

Step 11: Cool on wire rack; cover and chill at least 8 hours.

Step 12: Remove outer rim of springform pan, and place cheesecake on serving plate.

Step 13: Spread warm Chocolate Glaze over cheesecake (recipe follows).

FOR THE CHOCOLATE GLAZE

Step 14: Combine chocolate and butter in top of a double boiler on low heat; cook until melted (refer to note below). Remove from heat; add remaining ingredients, stirring until smooth. Spread over cheesecake while glaze is warm. Makes 1 cup.

Step 15: NOTE # 1: I always end up using more of the 1st 3 ingredients to press onto pan because it never seems to be enough. I've also found through trial and error that the chocolate wafer mixture adheres to pan better if you butter your pan first.

Step 16: NOTE # 2: When melting chocolate over a double boiler be careful not to let the boiling water heavily touch the pan that the chocolate is inches This will cause the chocolate to seize (harden in lumps), and will not soften to a smooth texture. Too high a temperature will also cause the same effect. This is especially true for white chocolate which is more sensitive to seizing, be sure to melt gently.

Step 17: NOTE # 3: Depending on your oven, it may not be easy to leave your door partially open which means, more or less 2-4 inches open. Therefore, place a kitchen towel on the corner of your oven door and snug the door against it. This will keep your oven door partially open.