Blueberry Cream Cheese Squares

Ingredients

• 1/4 cup cornstarch
• 1/2 cup sugar
• 1/2 cup water
• 3 cups blueberries
• 1 box graham crackers
• 1 1/2 sticks butter
• 2 (8 oz) packages cream cheese
• 1 cup sugar
• 2 teaspoons Vanilla
• 1 small container cool whip