1. Brush inside of pots with oil and line with parchment or foil. Brush lining with oil and lightly dust with extra cocoa.
2. Sift cocoa, flour, sugar, baking soda and baking powder and salt into mixing bowl. Add egg & yolk, 3/4 c warm water, buttermilk, oil, vanilla; mix low for 3 mins.
3. Pour batter in pots 2/3 full. Place pots on rimmed baking sheet. Bake rotating sheet half way through. Cool completely on sheet on wire rack.
