Combine flour, baking soda and powder, salt and sugar. Incorporate shortening until the mixture resembles bread crumbs (but not as much as a pie crust dough).
In another bowl bring together the coffee, oil, vanilla and vinegar.
DON'T combine the dry and wet ingredients until your oven is preheated to 350 and your cake pan is greased!!!
This is bc the vinegar reacts with the baking soda and powder, enabling cake to rise. It can lose its strength if left outside the oven for a while, which means your cake might not rise enough
Once oven and baking pan are attended, make the batter. Immediately transfer to pan and bake.
I used a brownie pan, but you can use a regular cake pan
Sprinkle with powdered sugar or glaze!