With Spring around the corner, we're soon to be swimming in fresh blueberries. Blueberry Crumble Shortbread Bars are a perfect use for those lovely little berries.
In a medium saucepan, bring up the blueberries and sugar to a boil. Once they've softened, pop them with the back of a spoon to release the juices.
Reduce the sauce until it coats the back of a spoon. Brighten the sweetness with a pinch of salt and the juice of a lemon.
Cool completely.
Shortbread Dough
In a large mixing bowl, whisk together the almond flour, all purpose flour, powdered sugar, baking soda, and salt.
In a separate small bowl, beat the egg with the almond extract. Mix it into the dough.
To incorporate the butter, you can grate it in with a box grater or cut it in. You want to keep it cold as long as possible. You may need to use your hands to really getting it incorporated into a smooth dough.
Wrap the dough in plastic wrap and refrigerate for 1 hour.
Preheat the oven to 350°F. Line a 9x13 pan with parchment paper and set aside.
Cut the dough in half, and press one half. Make sure there are no crack or holes for the filling to leak through.
Spread the blueberry filling over the top.
With the remaining dough, break off small pieces and flatten them out to cobble over the top. Leave some of the filling visible.
If you are topping with oats, you sprinkle them on now.
Bake for 25 minutes.
Cool completely in the pan. Remove and cut into 24 bars.