McKenna’s Notes: To rid of any confusion, this sourdough icebox cake consists of 3 layers of sourdough graham crackers, 2 layers of a whipped cream/cream cheese mixture, 2 layers of berries and 1 layer of whipped cream. I used about 4 ½ sourdough graham crackers (2.25 x 5 inch each) per layer. You may need to break them in order for them to fit properly.
Prepare my Sourdough Graham Crackers recipe in advance. 13-14 sourdough graham crackers
Using a hand mixer or stand mixer fitted with a whisk attachment, whisk together the cold heavy cream, powdered sugar and vanilla until stiff peaks form. Place this in a separate bowl.
600 grams heavy cream, cold, 50 grams powdered sugar, 6 grams vanilla extract
In the clean bowl with a hand mixer or stand mixer fitted with a paddle attachment, beat the softened cream cheese. Fold in all but 1 cup of the homemade whipped cream with a rubber spatula until evenly combined. (The remaining 1 cup of whipped cream will be used as the “frosting” for this cake) Set aside.
226 grams full-fat cream cheese, softened
Assemble the cake: Spread a very thin layer of the whipped cream/cream cheese mixture, a few tablespoons, on the bottom of an ungreased 9x9 pan. This helps the sourdough graham crackers from sticking to the bottom of the pan. Arrange the sourdough graham crackers on top; break them if you need to fit. Spread ½ of the whipped cream/cream cheese mixture on top of the graham crackers, then top with ½ of the berries. Follow with another layer of sourdough graham crackers.
380 grams fresh berries, like chopped strawberries, blueberries and raspberries
Repeat this pattern again with the remaining whipped cream/cream cheese mixture, remaining berries and a final layer of sourdough graham crackers.
For the final layer, spread the reserved cup of whipped cream over the sourdough graham crackers evenly with an offset spatula. Cover the sourdough icebox cake with aluminum foil or plastic wrap and store in the fridge overnight or up to 48 hours. When ready to serve, garnish with more fresh berries, slice cold and enjoy!