Preheat the oven to 425⁰ degrees and line a 13×18 inch baking sheet with baking parchment and set aside.
In a food processor, add the sifted flour, salt, baking powder, baking soda, and sugars. Pulse to mix. Toss in the pieces of cold butter and process until the mixture resembles a coarse meal.
In a measuring cup, add the cold buttermilk, salt, and vanilla; stir to combine. Then, pour all at once over the flour mixture and pulse until the dough comes together (don’t process too much!!!). The dough should be moist. Transfer the dough to a lightly floured countertop. Pat the dough gently with your hands into a disk that is roughly 1 inch thick.
Fold the dough over itself 2 to 3 times, this will help create layers. Dip a 2.5-inch diameter biscuit cutter in flour and cut out the biscuits. Do not twist the biscuit cutter as this will prevent the biscuits from rising evenly. Gently fold over any remaining biscuit dough and repeat to take roughly 8 to 10 biscuits total.
Alternatively, you can lightly flour your hands or lightly wet your hands and form the dough into 8 balls or use a ¼ cup ice cream scooper and drop/ place on the prepared pan 2 inches apart, sprinkle turbinado sugar on each biscuit, and lightly flatten the surface. Bake for about 10 to 12 minutes, turning halfway through if needed for even cooking. Let cool on a wire rack until serving.
For the Strawberry: In a medium bowl, combine the strawberries, sugar, and orange liqueur and refrigerate for a few minutes to allow the strawberries to macerate.
For the Whipped cream: Whip the heavy cream in the bowl of an electric mixer fitted with a whisk attachment (you can also use a hand mixer). When it starts to thicken, add the sugar and vanilla and continue to beat until firm. Don’t overbeat!
To serve: Split each biscuit needed and place the bottoms on small plates or bowls. Spoon the strawberries and juices over the bottom half of each shortcake bottom. Place a spoonful of whipped cream in the center of the bottom half and cover with more whipped cream and strawberry. Top with the other biscuit top. Serve the Strawberry Shortcake immediately. Enjoy!