01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper, leaving overhang on two sides for easy removal.
02 - In a large bowl, whisk together the rolled oats, almond flour, coconut sugar, and salt. Pour in the melted coconut oil and vanilla extract, stirring until the mixture forms coarse, uneven crumbs.
03 - Transfer roughly two-thirds of the crumble into the prepared pan. Press it down firmly and evenly to create a compact base. Set aside the remaining third for the topping.
04 - Place the chopped strawberries, maple syrup, and lemon juice in a saucepan over medium heat. Cook for 4 to 5 minutes, stirring frequently, until the berries begin to soften and release their juices. Sprinkle in the cornstarch and continue cooking for 1 to 2 minutes until the mixture thickens. Remove from heat and let cool slightly.
05 - Combine the soaked cashews, coconut cream, maple syrup, vanilla extract, and salt in a high-speed blender. Blend on high until completely silky and free of any grainy bits, scraping the sides as needed.
06 - Spread the cashew cream in an even layer over the pressed crumble base. Spoon the strawberry filling over the cream, distributing it evenly. Scatter the reserved crumble mixture across the top.
07 - Bake for 35 to 40 minutes until the top turns golden and the filling bubbles around the edges of the pan.
08 - Let the pan cool completely at room temperature, then refrigerate for at least 2 hours. Use the parchment overhang to lift the block out, then slice into 12 squares.