Mix the berries and sugar together and let sit for about 4 hours. This helps make the berries juicy. To make biscuits: Pre-heat oven to 350 degrees. In a bowl, combine the flour, baking powder, baking soda and salt. Add the cold butter, then mix (preferably with a paddle attachment) until you have a cornmeal texture.

Add 3/4 cup of the milk, vanilla and orange zest and mix until completely combined. (To zest an orange, use a zester, paring knife or vegetable peeler to remove only the colored part of the skin.)

Roll out the dough (if desired, roll it out a second time) and cut into circles. Place on a baking sheet, brush the tops with remaining milk, and sprinkle with sugar. Bake for 10–15 minutes, until golden brown.

Assemble the dish:
Slice the biscuits in half and place on plates. Spoon some of the berry mixture on the bottom half and top with a dollop of fat-free whipped cream. Cover with the top half of the biscuit and add some more berries and whipped cream.