Preheat oven to 400 degrees F and grease your doughnut pans with butter or non-stick spray.
In a large bowl, add the butter, oil and brown sugar. Whisk for a couple minutes until smooth and fluffy.
Add in the chai, egg, vanilla, cinnamon, cloves, allspice, cardamon and ginger. Whisk until smooth.
Add the flour, baking powder, and salt. Stir until combined (don't over stir). The batter will be very thick.
Add batter to a large disposable freezer bag (or piping bag). Cut off the corner of the bag.
Pipe the batter into each donut hole. You want a smooth, even piping of the dough if you want smooth, evenly shaped donuts. The donut hole should be filled about 2/3 full but do not over fill.
Bake for 8-10 minutes. I like my edges to just start to brown a little and a toothpick inserted comes out clean. Then let cool 5-10 minutes before removing from the pan to cool completely.
Toss in cinnamon sugar coating, and then put on cooling rack to finish cooling.