Preheat oven to 350F. In a small bowl combine warm water and chia seeds and let sit for about 20 minutes, and allow chia seeds to gel in water.
In a mixing bowl, combine sugar, flour, cocoa powder, baking powder, baking soda, and salt. After 20 minutes, add the almond milk, vegetable oil, and vanilla to the chia water mixture and mix to combine.
With a mixer on low speed, slowly add the wet ingredients to the dry ingredients and mix until combined.
Divide batter between two 9” round greased pans.
Bake for 25-30 minutes, cool.