1-First Step: Crush 1.5 cups graham cracker crumbs in a food processor or zip-top bag with a rolling pin until fine. This takes 2-3 minutes for even texture. Mix in 1/3 cup melted unsalted butter and 2 tbsp granulated sugar. Stir until crumbs resemble wet sand. Press firmly into the bottom of a greased 8×8-inch baking pan lined with parchment for easy removal. Use the back of a measuring cup for a flat, even layer. Bake at 350°F for 10 minutes until golden. Cool for 10 minutes while you make the filling. This step ensures a crisp crust that holds up to the creamy top.

2-Second Step: Beat 16 oz softened full-fat cream cheese with 1/2 cup granulated sugar using a stand or hand mixer on medium speed for 2 minutes. Scrape down sides to avoid lumps. Add 2 large eggs one at a time, mixing on low after each. Beat in 1 tsp vanilla extract and 1/2 cup Nutella until smooth and velvety, about 1 minute. Room-temperature ingredients prevent cracks and yield creamy nutella swirl cheesecake.

3-Third Step: Pour half the filling over the cooled crust, spreading evenly. Dollop 2 tbsp Nutella across the surface and swirl gently with a knife or skewer for marble effect. Avoid overmixing to keep distinct swirls. Pour remaining filling on top, then dollop and swirl another 2 tbsp Nutella. Tap the pan on the counter to release air bubbles. This creates the iconic nutella swirl look.

4-Fourth Step: Lower oven to 325°F. Bake for 35-40 minutes. Edges set firm, but center jiggles slightly like Jell-O. Turn off oven, crack door, and cool inside for 1 hour to prevent sinking. Cool to room temperature, then chill in fridge for at least 4 hours or overnight. This firms the bars for clean cuts.

5-Final Step: Lift out using parchment, cut into 16 squares. Garnish with chopped hazelnuts or melted chocolate if desired. Serve chilled for best texture. Store as noted below. Pro tip: Use high-quality Nutella for bold flavor.