Preheat oven 350 degrees F. Line and lightly grease a 13x9 inch pan with parchment paper and set aside.

In a large bowl, combine brown rice flour, almond flour, sugar, baking powder and salt. In a medium bowl, stir together, almond milk, ground flaxseeds, coconut oil, vanilla and almond extract.

Pour liquid mixture into dry and mix to combine until batter is smooth and creamy. Scoop batter into prepared pan and bake for 40 minutes or until a toothpick inserted into the center comes out clean.

Remove cake from oven to a cooling rack, keep in the pan until completely cool before adding frosting.

Add cream cheese, butter, powdered sugar. vanilla, lemon juice in a large bowl. Using an electric mixer, process cream cheese frosting until smooth and fluffy.