Preheat the oven to 350F and line an 8x8 inch baking dish with parchment paper.
In a bowl, mix the almond flour, powdered sugar, and melted butter, then press the mixture evenly into the bottom of the baking dish.
Bake the crust for 12 minutes until lightly golden, then leave the oven on.
While the crust bakes, whisk together the eggs, granulated sugar, fresh lemon juice, gluten free all purpose flour, and strawberry puree until well combined.
Pour the strawberry lemon filling over the warm crust and bake for another 20 to 25 minutes until the center is set.
Let the bars cool completely at room temperature, then refrigerate for 2 hours before dusting with extra powdered sugar and slicing.