Preheat oven to 400°F. Line a baking sheet with parchment paper and set aside.
In a large bowl, whisk together the flour, sugar, baking powder, salt, baking powder and 3/4 of the pulverized strawberries (save the rest for topping later). Add the cold butter and rub with your fingers until the mixture resembles coarse crumbs the size of peas. Stir in the chocolate chips. Add the buttermilk and stir with a rubber spatula until it all comes together to form a rough dough.
Transfer to a lightly floured work surface and knead together to form a cohesive dough. Use a rolling pin to roll into a 1 inch thick rectangle, that is roughly 8 by 10. Use a sharp knife to cut into twelve squares.
Transfer the biscuits onto the prepared baking sheet, giving them about 2-inches of space in between each. Chill in the freezer for at least 20 minutes.
Brush the biscuits with melted butter and bake until puffed up and golden brown, about 20 to 25 minutes. Immediately remove from the oven and sprinkle with the remaining strawberry powder. Allow to cool slightly before serving with butter and jam. Enjoy!