In a large bowl, whisk flour, sugar, baking powder, baking soda and salt together.
Using a pastry cutter or fork, add butter and mix until crumbly.
Add chopped cherries and dark chocolate. Stir.
Pour half and half into the dry ingredients, and with clean hands, mix until just combined. Add additional half and half, if more liquid is needed.
On a clean surface, lightly covered with flour, knead dough about 8 times.
Flatten out dough to about 1 inch high and form into a rectangle.
Sprinkle the top with coarse sugar. Gently pat into dough.
Cut into 8-10 triangle pieces and place on the prepared baking sheet.
Bake for 16-20 minutes or until browned.
Remove from oven and let cool. once cool, drizzle with glaze and enjoy