01 - Combine peaches, granulated sugar, lemon juice, and cinnamon in a medium saucepan. Cook over medium heat for 4-5 minutes, stirring occasionally, until peaches soften and release juices.
02 - Whisk cornstarch and water in a small bowl until smooth. Stir slurry into peach mixture and cook 1-2 minutes until thickened. Remove from heat and cool completely.
03 - Beat cream cheese, powdered sugar, and vanilla extract in a large bowl until smooth and creamy.
04 - In a separate bowl, whip heavy cream to stiff peaks using an electric mixer or whisk.
05 - Gently fold whipped cream into cream cheese mixture until fully incorporated and fluffy. Refrigerate until ready to assemble.
06 - Mix graham cracker crumbs with melted butter until texture resembles wet sand.
07 - Spoon cheesecake filling into each cone, followed by peach filling. Repeat layers if space permits. Top with graham cracker crumble and whipped cream.
08 - Serve immediately for optimal crunch. Refrigerate assembled cones no longer than 1 hour before serving to prevent sogginess.