Preheat the oven to 350 degrees F and prepare a 8x8 inch pan with non-stick spray and set it aside.
Place the strawberries, sugar, vanilla extract, and lemon juice into a pot over medium-high heat and bring to a boil. Once boiling, reduce to a simmer and let cook for 10-15 minutes. Use a potato masher to smash your strawberries. Stir in the xanthan gum and continue to simmer for 3-5 minutes. Remove from heat and let cool.
While the strawberries simmer, place your almond flour, sugar, butter and salt into a food processor and pulse until a loose dough forms. Remove 1/2 cup of dough and use your hands to break it into small crumbles. Place the crumbles into a bowl and place in the fridge until ready to use.
Press the remaining dough into the bottom of your prepared pan and press it down evenly. Bake the crust for 10-15 minutes or until edges are golden brown. Remove and let cool.
Pour the strawberry filling over your crust and spread it out in an even layer.
Top the strawberry filling with the reserved crumbles and bake for 20-25 minutes or until the crumbles are golden brown. Allow to cool completely, cut into even squares and enjoy!