Very lightly spray coat a 9 x 13 baking dish. Sprinkle blueberries into the pan and drizzle lemon juice over all
Cream the applesauce and half the sugar together in a large bowl. Sift the flour, baking powder and 1/2 the salt and add to the applesauce mixture
Add the almond milk and stir until combined. Spread this mixture over the blueberries
Now, in another bowl, combine the remaining sugar and cornstarch with the remaining salt. Sprinkle this mixture over the flour mixture. Then, pour 2 cups boiling water over all
Bake at 375 degrees for 1 hour. Serve warm with your favorite vegan ice cream or vegan whipped cream