Preheat oven to 425°F and line a baking sheet with parchment paper.

Toss diced strawberries with 1 tablespoon flour and set aside.

Whisk together 3 cups flour, 1/3 cup sugar, baking powder, and salt in a large bowl.

Whisk vanilla into 1 1/2 cups heavy cream.

Add half the cream mixture to dry ingredients and stir gently. Gradually add the rest until a dough forms with no dry spots.

Fold in the flour-coated strawberries.

Turn dough out onto a floured surface and form into a 7-inch round disc.

Slice into 8 wedges and place on baking sheet. Freeze for 15 minutes.

Brush tops with remaining cream and sprinkle with sugar.

Bake for 14–16 minutes until golden on top. Let cool slightly before serving.