Preheat the oven to 350 degrees and coat a baking pan (9 by 13) with cooking spray. Set aside.
In a medium sized mixing bowl, combine the white sugar, corn starch, salt, and berries, then add the lemon juice and vanilla.
Mix well and place mixture into the prepared baking pan.
In a clean bowl, stir together the brown sugar, white sugar, salt and flours until well combined.
Using your fingers, two forks, or a pastry blender, cut the butter into the flour mixture until the crumb is the size of peas..
Evenly spread the crumble on top of the berries.
Bake at 350 for 30-40 minutes until it’s a deep golden brown and the fruit is bubbling around the edges.
Let cool for 10-15 minutes and serve with your favorite vegan ice cream or whipped cream!