Joyce wants to surprise her sister Moana by preparing her favorite blueberry crumb bars. Do you know how to prepare this yummy crumb bars with blueberry? Then, join with Joyce in preparing this Blueberry crumb bars by helping her in the kitchen. Have a look at the ingredients on the ingredients page and prepare the crumb mixtures and bake it in the preheated oven for 30 mins. Now, you're ready with Yummy Blueberry Crumb Bars. You've explored the cooking method of this tasty crumb bar. You can also try it in your kitchen with the help of your parental guidance and surprise them.