To make the biscuits, simply pour the buttermilk into a mixing bowl with the biscuit mix and mix with a spoon.
Turn the biscuit dough out onto the floured surface. Sprinkle with a touch of flour, then gently fold and knead the dough *just* enough to keep it from sticking to you.
Cut the dough into even pieces. I used a 2" biscuit cutter, but you can also use a bench scraper if you don't care if the biscuits are round.
Bake at 400F for about 15-18 minutes, rotating the pan about halfway through. Remove from the oven when the tops are golden brown and a toothpick comes out clean.
Slice berries. Sprinkle with sugar. If using, now's the time to add any additional flavorings like citrus zest, liqueur or extracts. Let sit for 10 mins.
Hamburger slice your biscuits in half. Bonus points if they are still a little warm. Spoon whipped cream, berries and syrupy juices onto the bottom biscuit half.