In a large mixing bowl, add in the flour, sugar, baking powder, baking soda, and salt. Whisk to combine.
In a separate bowl stir together the yogurt, heavy cream, and vanilla.
Thinly slice the butter and toss it into the dry ingredients. Rub the butter slices into the flour mixture until thin and flaky.
Add in the cherries and dark chocolate and stir once more.
Pour in the liquid and cut it in with a fork. Try to fold and cut the dough instead of stirring it.
Dump the very crumbly dough onto your work surface and pat it together into a 2" tall rectangle. Bring the edges in with a bench scraper, work quickly as to not melt the butter.
Use a bench scraper or a knife to cut the rectangle in half. Hotdog style if ya know what I mean. Stack the two halves on top of each other and press down to smush the two layers together.
With the palms of your hands or a rolling pin, flatten the dough again until it is 2" thick. Then repeat cutting it in half and stacking it. Pat it into a square that is 2"-3" tall.
Wrap the dough in plastic wrap and place it in the fridge while you preheat the oven.
While the dough chills, place a rack in the center of the oven and heat to 450 F.