Created by Manadoo on December 5, 2015
Step 1: Preheat oven to 350°F.
Step 2: Mix crushed graham crackers with 6 tablespoons butter and 1/4 cup sugar in medium bowl; press onto bottom (not sides) of a 9-inch springform pan with 2 3/4-inch high sides.
Step 3: Bake crust 10 minutes. Cool (maintain oven temperature at 350).
Step 4: Combine 1/2 cup whipping cream, espresso powder or coffee and vanilla in small bowl; set aside.
Step 5: Using electric mixer, beat cream cheese in large bowl until smooth.
Step 6: Gradually beat in remaining 1 1/4 cups sugar, then eggs 1 at a time.
Step 7: Beat in flour.
Step 8: Stir espresso mixture until the powder completely dissolves. Beat into cream cheese mixture. Stir in chocolate chips.
Step 9: Pour batter over crust.
Step 10: Bake cake until edges are puffed and beginning to crack and center is just set, about 1 hour 5 minutes.
Step 11: Cool on rack for 30 minutes; chill, uncovered for 6 hours.
Step 12: Cut around cake to loosen.
Step 13: Release pan sides. Cool to almost room temperature., Refrigerate overnight before serving.