Bottom Layer:
Mix graham cracker crumbs, melted butter, and sugar in a bowl until combined like wet sand.
Press firmly into a 9x13 pan using a flat-bottomed glass or cup.
Chill in the fridge while making the next layer.
Cream Layer: 4. Beat cream cheese until smooth and fluffy (about 3–4 minutes).
Add powdered sugar and vanilla, mix until fully incorporated.
Gently fold in Cool Whip using a spatula (not the mixer).
Spread evenly over the crust.
Cherry Layer: 8. Spoon cherry pie filling over the cream layer, spreading gently to avoid mixing layers.
Sprinkle with chocolate shavings if using.
Cover and chill for at least 3 hours, preferably overnight.