Preheat oven to 350F. Line an 8x8 baking pan with parchment paper with slight overhang on each side. Set aside.
In a large bowl, combine all crust ingredients and stir until evenly moist (looks like wet sand). Transfer to your prepared pan. Press down and make sure the crust is packed on the bottom of the pan.
Bake for 10 minutes. Take out of the oven and allow to cool slightly. Keep your oven on. In the meantime, prepare your filling.
In a large bowl, whisk all filling ingredients until smooth and incorporated. Transfer to your pan and bake for 10-12 minutes or just until you see the edges starting to set (don't allow to brown).
Allow to cool slightly before chilling 4-6 hours (preferably overnight). Cut into squares once set completely.
Video
Notes
I used fresh lime juice for this recipe (about 4 limes to make ½ cup) but you can also use store-bought, unsweetened juice