To get the most out of summer berries in her blueberry crumble bars, Jocelyn Delk Adams, author ofthe "Grandbaby Cakes," cookbook uses lime juice to brighten their flavor. Feel free to use any berry you love in place of the blueberries. These are SO delicious, it'll be tough to stop at just one!
For the crumble and crust:
Preheat the oven to 375 F. Prepare an 8-by-8-inch baking pan with the non-stick coating of your choice.
For the crumble and crust, whisk together flour, sugar, baking powder and salt.
Next, cut in the cold butter using two forks or a pastry cutter then slowly mix in the egg yolk and cold water. Don't worry if the dough seems really crumbly. It should be!
Next take half of the crumble mixture and press into the prepared pan. The rest should be saved for the top of the bars.
For the blueberry filling:
Stir together blueberries, lime juice, flour, sugar, cinnamon and vanilla until combined.
To assemble, evenly add blueberry filling to top of crust.
Next sprinkle the remaining crumble over the top of the blueberry filling.
Bake for 30 to 38 minutes, or until golden brown and set.
Cool bars to room temperature then cut and serve.