Lemon Blueberry Cake Bars

1 1/2 c. graham cracker crumbs

1/4 c. butter, melted

3 T. + 1/3 c. sugar, divided

8 oz. cream cheese, softened

1 egg

1/3 c. heavy whipping cream

lemon zest from 1 lemon

1 c. fresh blueberries

Preheat oven to 300. Spray 9x9 dish. Mix graham cracker crumbs, butter, and 3 T. sugar together. Stir to combine. Press in pan. Beat cream cheese, 1/3 c. sugar and vanilla. Add egg and beat 1 minute. Stir in whipping cream and lemon zest. Pour filling in pan. Sprinkle blueberries over batter. Bake 25-30 minutes. Remove from oven when center is set and cool completely. Store in refrigerator.