1 &#188; Cup whole wheat flour 6 Tbsp cocoa powder 1 tsp baking powder &#189; tsp baking soda 1 tsp ground chia seeds &#188; tsp salt &#190; Cup water &#189; Cup blueberries + 1 Cup for topping 1 tsp balsamic vinegar &#189; Cup maple syrup Preheat oven to 350&#176;.&#160; Oil a 9&#8221; cake pan. Mix together flour, cocoa, baking powder, baking soda, chia and salt in a medium bowl.&#160; Add water, &#189; Cup blueberries and vinegar to a blender and blend until smooth. Make a well in the dry ingredients.&#160; Add the maple syrup and blended blueberry mixture.&#160; Stir gently until all of the wet ingredients are incorporated. Pour into cake pan and bake for 30 minutes or until a toothpick comes out clean.&#160; Cool completely.&#160; Invert onto a serving platter and top with fresh blueberries. Recipe adapted from fatfreevegan.com. &#160;See the original post <a href="http://blog.fatfreevegan.com/2010/07/chocolate-blueberry-cake.html">here</a>.