
Combine 1 ½ cups graham cracker crumbs, ¼ cup granulated sugar, and 6 tablespoons melted salted butter in a medium bowl until it resembles damp sand.
Press the crust evenly into an 8-inch pie dish, using your fingers or a flat-bottomed measuring cup or glass to press the bottom and up the sides. Chill in the refrigerator while you prepare the filling.
Add 1 (3-ounce) package strawberry gelatin and 1 cup boiling water to a medium bowl and whisk until completely dissolved. Set aside to cool and thicken.
Add 1 ½ cups heavy cream, ⅓ cup powdered sugar, and ½ teaspoon vanilla extract to a large bowl and whip with a handmixer or stand mixer fitted with the paddle attachment until you have stiff peaks.
Add the gelatin to the whipped cream and stir gently until combined.
Fold 1 ½ cups roughly chopped fresh strawberries into the whipped cream, then fill the chilled crust. Chill in the refrigerator for at least 4 hours before serivng.