Blueberry Crumb Bars

Directions

1. 1
   Prepare shortbread crust; preheat oven to 375°.
2. 2
   In large bowl with mixer at medium speed, beat butter, sugar and vanilla until fluffy.
3. 3
   Reduce speed to low, beat in flour just until combined;
4. 4
   with fingers press dough firmly onto bottom of 15 x 10 1/2 jelly roll pan to form crust.
5. 5
   Bake 20 minutes or until crust is golden brown.
6. 6
   Cool slightly on wire rack.
7. 7
   While crust bakes, prepare blueberry filling.