Blackberry Pie Bars (Makes 16 bars. Adapted from Annie's Eats)
For the crust:
- 1½ cups all-purpose flour
- ¾ cup sugar
- pinch of salt
- zest of half a lemon
- ¾ cup unsalted butter, cold and cut into little cubes
For the filling:
- 2 large eggs
- 1 cup sugar
- ½ cup Greek yogurt (berry or plain)
- 6 Tbsp all-purpose flour
- pinch of salt
- juice of half a lemon
- 1 teasp vanilla extract
- 15-16 oz. blackberries, fresh or frozen (thawed and drained of excess juices)
- Preheat the oven to 350 degrees. Line a 9 x 9-inch baking pan with wax paper or foil.
- Make the Crust: In the bowl of a food processor or electric mixer, combine the flour, sugar, salt and lemon zest. Pulse briefly to blend.
- Add the cubes of butter to the bowl with the dry ingredients. Process in short pulses to cut the butter into the dry ingredients until only small pieces of butter remain and the mixture is crumbly.
- Reserve ¾ cup of the mixture for topping the bars.
- Add the rest of the mixture to the prepared pan and press to form an even layer of crust on the bottom of the pan.
- Bake 12-15 minutes, until light golden. Let cool 10-15 minutes before proceeding.
- Make the Filling: In a medium bowl combine the eggs, sugar, yogurt, flour, salt, lemon juice and vanilla. Whisk until smooth.
- Gently stir in the blackberries with a spatula.
- Spread the filling mixture over the pre-baked crust in the baking pan.
- Crumble the reserved topping mixture over the filling evenly.
- Bake until the top is beginning to brown and the bars are just set, about 45 minutes.
- Let cool completely on a wire rack. Chill to firm up before slicing and serving.