Preheat oven to 325 degrees F.
Dice apple, squeeze on the lemon or lime juice, and lightly toss to evenly coat.
Add all dry ingredients to a large mixing bowl and whisk until evenly mixed. Add wet ingredients and whisk until well combined. Add diced apples and fold in with a spatula until evenly distributed throughout batter.
Spray and 8 inch square baking dish with cooking oil spray. Pour batter evenly into dish and use a spatula to spread the top to an even layer.
Bake for 40 minutes until surface of cake is golden brown. Allow to cool for about 5 minutes before serving. Scoop portions into bowls with a spoon and top with vegan ice cream, chopped pecans or vegan caramel sauce.