Combine all ingredients for the crust in a large bowl. Cut in the cold butter with a pastry blender, two forks, or your hands until the crust forms small peas and holds together. Press 1/2 – 2/3 of the mixture into a jelly roll pan. Save 1/2 – 1/3 of the crust mixture for a crumble topping.
In a separate large bowl, combine the blueberries, jelly, cornstarch, lemon zest, lemon juice, and sugar. Stir to combine. Pour blueberry mixture over the top of the crust and smooth out with a spatula.
Crumble the remaining crust topping over the top.
Bake at 350 degrees for 40-45 minutes or until golden brown and filling is bubbling. Cool completely before cutting. Cut into bars & enjoy!