01 - Combine peaches, sugar, lemon juice, and cinnamon in a saucepan. Cook over medium heat for 4-5 minutes until peaches soften and release juices, stirring occasionally.
02 - Whisk cornstarch and water to form a slurry. Stir into peach mixture and cook 1-2 minutes until thickened. Remove from heat and cool completely.
03 - Beat cream cheese, powdered sugar, and vanilla until smooth. In separate bowl, whip heavy cream to stiff peaks. Fold whipped cream into cream cheese mixture until fluffy and combined.
04 - Combine graham cracker crumbs with melted butter, stirring until texture resembles wet sand.
05 - Layer cheesecake filling and peach cobbler into each cone, repeating if space allows. Top with graham cracker crumble and whipped cream.
06 - Serve immediately for optimal crunch. Refrigerate assembled cones no longer than 1 hour before serving to maintain texture.