In a large mixing bowl, whip the heavy cream, powdered sugar, and vanilla extract until soft peaks form. Set aside.
In the bottom of a 9x9-inch baking dish, lay down a layer of shortbread cookies, slightly overlapping if needed.
Spread a layer of whipped cream over the cookies, followed by a layer of sliced strawberries.
Repeat the layers—cookies, whipped cream, and strawberries—until the dish is filled, finishing with a layer of whipped cream on top.
Cover with plastic wrap and refrigerate for at least 4 hours or overnight to allow the flavors to meld and the dessert to firm up.
Before serving, garnish with additional fresh strawberries and a drizzle of lemon juice if desired.
Slice and serve chilled. Enjoy!