Step 1: Prepare the Crust

1. In a mixing bowl, combine the graham cracker crumbs, melted butter, and granulated sugar. Stir until the mixture resembles wet sand.
2. Press the crumb mixture into the bottom of a 9-inch springform pan, creating an even layer.
3. Place the crust in the refrigerator while preparing the cheesecake filling.

Step 2: Make the Cheesecake Filling

1. In a large mixing bowl, beat the softened cream cheese until smooth and creamy.
2. Add the creamy peanut butter, powdered sugar, and vanilla extract to the bowl. Continue to beat until all the ingredients are well combined and smooth.
3. In a separate mixing bowl, whip the chilled heavy cream until stiff peaks form.
4. Gently fold the whipped cream into the cream cheese mixture until fully incorporated. Be careful not to overmix.

Step 3: Assemble and Chill the Cheesecake

1. Remove the crust from the refrigerator and pour the cheesecake filling over it, spreading it out evenly.
2. Use a spatula to smooth the top of the cheesecake.
3. Place the cheesecake in the refrigerator and let it chill for at least 4 hours, or preferably overnight, to allow it to set.

Step 4: Add the Peanut Butter Drizzle

1. In a microwave-safe bowl, heat the creamy peanut butter for about 30 seconds to soften it.
2. Stir in the powdered sugar and gradually add milk, one tablespoon at a time, until the mixture reaches a drizzling consistency.
3. Remove the chilled cheesecake from the springform pan and transfer it to a serving plate.
4. Drizzle the peanut butter mixture over the top of the cheesecake, creating a decorative pattern.

Step 5: Optional Toppings and Serving

1. For added crunch and flavor, sprinkle chopped peanuts over the peanut butter drizzle.
2. If desired, garnish the cheesecake with chocolate shavings for an extra touch of indulgence.
3. Slice the No-Bake Peanut Butter Cheesecake into generous portions and serve chilled.

Enjoy the creamy and delicious No-Bake Peanut Butter Cheesecake with its irresistible peanut butter flavor and velvety texture!