Read about these cheesecake bars at Bake or Break.
Preheat oven to 350°. Grease a 9″x 13″ baking pan.
Combine all ingredients using a fork or your hands. Press evenly into prepared pan. Bake for 15 minutes.
Spread blueberry preserves evenly over slightly cooled crust.
Beat cream cheese and sugar until light and fluffy. Add eggs, one at a time, mixing well after each addition. Add lemon juice and vanilla extract. Mix until smooth.
Pour filling evenly over crust and preserves. Bake 40-45 minutes, or until set.
Cool in pan on wire rack for about an hour. Refrigerate for at least 2 hours before cutting into bars.