01 - Combine graham cracker crumbs, melted butter, 2 tablespoons sugar, and lemon zest in a medium bowl. Mix until thoroughly blended and all ingredients are evenly moistened. Press the mixture firmly into the bottom of a 9-inch springform pan, creating an even layer. Refrigerate while preparing the filling.
02 - Beat the softened cream cheese and 3/4 cup sugar in a large bowl until completely smooth and creamy, approximately 2-3 minutes. Add lemon juice, lemon zest, and vanilla extract. Mix until fully incorporated and no lumps remain.
03 - In a separate chilled bowl, whip the cold heavy cream using a hand mixer or stand mixer until stiff peaks form. Be careful not to overwhip, which can cause the cream to separate.
04 - Gently fold the whipped cream into the cream cheese mixture using a spatula, using a light folding motion to maintain the airy texture. Continue folding until fully incorporated and no white streaks remain.
05 - Carefully fold 1 2/3 cups fresh blueberries into the cream mixture, using a gentle folding motion to avoid crushing the berries. Distribute evenly throughout the filling.
06 - Pour the blueberry cream filling over the chilled crust. Use a spatula to smooth the top, creating an even surface. Cover the springform pan with plastic wrap or foil.
07 - Refrigerate the cake for at least 4 hours, or overnight for best results. The cake is ready when the filling is firm and holds its shape when cut.
08 - Release the springform pan ring and carefully remove the cake. Arrange the remaining 3/4 cup fresh blueberries over the top. Sprinkle with lemon zest and add whipped cream garnish if desired. Slice and serve chilled.