In a medium bowl, combine cream cheese, 1/2 cup sugar, and vanilla. Beat until smooth.
Add eggs one at a time, beating well after each addition.
Pour into graham cracker crust.
Bake at 350 degrees F (175 degrees C) for 25 minutes.
Meanwhile, in a medium saucepan, combine strawberries, blueberries, 1/4 cup sugar, cornstarch, and cold water. Cook and stir over medium heat until thickened.
Cool slightly, then spoon over cheesecake.
Refrigerate until chilled.
Interesting Facts
Cheesecake is believed to have originated in ancient Greece.
Cheesecake is a popular dessert around the world.
The combination of cream cheese, sugar, and eggs make cheesecake a uniquely rich and creamy dessert.