Preheat oven to 400°F (200°C)
In a large mixing bowl, whisk together the flour, 2 tbsp of sugar, baking powder, and salt
Add the diced butter to the dry ingredients and use a pastry cutter or your fingers to cut the butter into the flour mixture until it resembles coarse crumbs.
Add the milk and vanilla extract to the bowl and use a fork to stir until the dough comes together.
On a lightly floured surface, knead the dough gently a few times until it forms a ball. Pat the dough into a round that is about 1 inch thick.
Use a biscuit cutter or a drinking glass to cut out circles of dough. Place the dough circles on a baking sheet lined with parchment paper.
Bake the shortcakes for 12-15 minutes, or until they are lightly golden and a toothpick inserted into the center comes out clean. Allow the shortcakes to cool completely.
In the meantime, place the sliced strawberries in a bowl and toss with 1 tablespoon of sugar.