Preheat the oven to 450. In a medium bowl, whisk together the flour, 1/4 cup sugar, baking powder, and salt. Grate the butter into the flour and toss to combine.

Stir together the half and half and vinegar, and let sit five minutes. Pour the half and half into the dry ingredients and mix just until the dough comes together.

Pat the dough out to an even layer, about one inch thick, on a lightly floured surface. Fold the dough into thirds, as though you are folding a letter. Pat the dough out again until it is about one inch thick. Cut into circles using a biscuit cutter or small cup. Bake 10-12 minutes, or until golden brown on top.

To make the strawberry sauce, combine 1 pound of strawberries with the sugar and lemon juice in a medium saucepan. Bring to a simmer and cook 5-7 minutes, stirring occasionally, until slightly thickened. Let cool ten minutes.

To serve the shortcakes, cut the biscuits in half horizontally. Top with remaining strawberry slices, warm strawberry sauce, and whipped cream.