Preheat your oven to 375°F (190°C). Line a baking sheet with parchment paper or a silicone baking mat.
Prepare the Strawberries:
Toss the diced strawberries with 2 tablespoons of granulated sugar. Set aside.
Mix Dry Ingredients:
In a large bowl, whisk together the flour, sugar, baking powder, and salt.
Cut in the Butter:
Add the cold, cubed butter to the flour mixture. Use a pastry cutter or your fingers to blend until the mixture resembles coarse crumbs.
Combine Wet Ingredients:
In a separate bowl, whisk together the heavy cream, egg, and vanilla extract.
Mix the Dough:
Gradually add the wet ingredients to the dry mixture, stirring until just combined. Gently fold in the sugared strawberries. Be careful not to overmix.
Shape the Cookies:
Scoop 1.5 tablespoons of dough for each cookie and place them on the prepared baking sheet, spacing them about 2 inches apart. Flatten slightly with your hand.
Bake:
Bake in the preheated oven for 15-18 minutes, or until the edges are golden brown. Let cool on the baking sheet for 5 minutes before transferring to a wire rack.