Roughly crush graham crackers. Set aside.
In a large skillet over medium high heat, combine diced apples, ¼ cup sugar, cinnamon, nutmeg, water and cornstarch. Cook, stirring frequently, until apples soften and sauce thickens. About 10 minutes. Set aside to cool for at least 10 minutes before assembling.
Meanwhile, in the bowl of a stand mixer, combine heavy cream, remaining 2 tablespoons sugar, and vanilla extract. Beat at high speed 2-3 minutes until you reach stiff peaks.
To assemble, layer cinnamon grahams, whipped cream and apple mixture into a glass or jar. Repeat layers until full.