Step 1: Prepare the Crust

Preheat your oven to 325°F (163°C). Lightly grease a 9-inch springform pan. In a medium bowl, combine the graham cracker crumbs, ¼ cup sugar, and melted butter. Mix well until the crumbs are evenly moistened. Press the mixture firmly into the bottom of the prepared springform pan, creating an even crust.

Step 2: Make the Cheesecake Filling

In a large mixing bowl, beat the softened cream cheese with an electric mixer until smooth and creamy. This is a crucial step for achieving a lump-free cheesecake, so take your time and ensure the cream cheese is thoroughly softened. Gradually add the 1 cup of granulated sugar, beating until well combined and the mixture is light and fluffy.

Step 3: Add the Flavorings

Stir in the vanilla extract. Add the eggs one at a time, mixing well after each addition. Be careful not to overmix at this stage, as overmixing can incorporate too much air into the batter, which can cause the cheesecake to crack during baking. Finally, stir in the sour cream until just combined. The sour cream adds moisture and tanginess to the cheesecake, enhancing its overall flavor and texture.

Step 4: Assemble the Cheesecake

Pour the cheesecake batter evenly over the prepared graham cracker crust. Gently tap the springform pan on the counter a few times to release any trapped air bubbles. Arrange the sliced peaches and mixed berries attractively on top of the cheesecake batter. Feel free to get creative with the arrangement, creating a visually appealing design.

Step 5: Bake the Cheesecake

Bake in the preheated oven for 50-60 minutes, or until the center of the cheesecake is just set. The edges should be slightly golden, and the center should have a slight jiggle. Turn off the oven and let the cheesecake cool inside the oven with the door slightly ajar for about an hour. This slow cooling process helps prevent cracking.

Step 6: Chill the Cheesecake

Once the cheesecake has cooled to room temperature, cover it loosely with plastic wrap and refrigerate for at least 4 hours, or preferably overnight. This chilling time allows the cheesecake to fully set and develop its flavor.

Step 7: Serve and Enjoy

Before serving, carefully remove the sides of the springform pan. Slice the cheesecake with a sharp knife and serve chilled. Garnish with extra fresh berries or a dollop of whipped cream, if desired.