1-First Step: Prepare the Cream Cheese Base Start by softening 8 oz cream cheese at room temperature for 30 minutes. In a large bowl, beat it with 1 cup powdered sugar and 1 tsp vanilla extract using a hand mixer on medium speed for 2 minutes. Scrape the sides to ensure smoothness. This base gives your blackberry dessert its creamy structure. Avoid overbeating to prevent lumps.

2-Second Step: Whip the Heavy Cream Chill a separate bowl and beaters in the fridge for 15 minutes. Pour in 2 cups heavy whipping cream and whip on high until stiff peaks form, about 3-4 minutes. Peaks should hold shape when lifted. Gently fold the whipped cream into the cream cheese mixture in three additions using a spatula. Fold until just combined for airy texture. This step takes patience but creates the perfect frosting.

3-Third Step: Make the Blackberry Compote In a saucepan over medium heat, combine 1.5 cups blackberries with 2 tbsp granulated sugar. Cook for 5 minutes, stirring until jammy and broken down. Mash lightly for more juice. Remove from heat and cool to room temperature, about 15 minutes. Fold the cooled compote into the cream mixture. Taste and add more sugar if berries are tart. Reserve 0.5 cups fresh blackberries for garnish.

4-Fourth Step: Layer the Cake Arrange a single layer of graham crackers (about 10 sheets) in the bottom of your 9×13 dish, breaking to fit. Spread one-third of the blackberry cream filling evenly over the crackers. Repeat with two more layers of crackers and filling, ending with cream on top. Pro tip: Dip crackers in blackberry juice from the compote for quicker softening. Smooth the top with an offset spatula.

5-Fifth Step: Chill and Finish Scatter reserved whole blackberries over the top. Cover with plastic wrap and refrigerate for 6-8 hours or overnight. The crackers will soften into tender cake layers. Total active time: 20 minutes. Chill time builds flavor as berries infuse the cream. For best results, use a cold dish from the fridge.