These pie bars have a lemon flavoured shortbread crust as well as crumble on top, with a tart and creamy cream cheese filling with blueberries - total drool-worthy!
Shortbread Crust (for base and top)
227gunsalted butter- melted
1tsplemon zest- plus 1 tsp for sprinkling on top later
2tsp vanilla extract
200gcream cheese- soft at room temperature
150gplain thick yoghurt
3cupsabout 300g blueberries (I've used frozen, unthawed - fresh ones are really expensive here!)
Prepare an 8x8 inch square pan by putting a parchment paper with overhang. Preheat the oven to 180 deg C.
In a bowl, mix the melted butter, sugar, lemon zest, vanilla, salt and flour. Reserve 3/4 cup of this mixture and spread the rest of the mixture onto the pan evenly. Put the reserved mixture in the fridge - it'll be used for the crumble top later.
Bake the shortbread crust base for 16-18 min till slightly firm.
Meanwhile, in a separate bowl, beat the cream cheese using a stand mixer or hand mixer till soft and creamy. Add one egg at a time and mix well. Add the sugar, yoghurt, lemon juice, lemon zest, salt and flour and mix well till no lumps.
Gently fold in 2½ cups of frozen blueberries into the mixture with a spatula (don't mix too hard else your mixture will turn purple, little is okay).
Pour this mixture over the baked crust. Sprinkle the remaining ½ cup of blueberries on top of the filling. Crumble the reserved cooled shortbread mixture with your hand (or a fork) and sprinkle it on the top of the filling.
Bake it at 180 C for 60-65 minutes till a skewer inserted comes out almost clean.
Remove the pan from the oven and let it cool completely on a wire rack. Once cool, cover it and put it in the refrigerator for at least 2 hours (this will help in setting it for cutting into squares later).
Remove from the pan using the overhang and sprinkle the lemon zest over the top. Cut into squares and serve. These keep best in the fridge for 5-6 days.
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