Dessert

Blueberry Lemon Icebox Cake Recipe

Bylilan Sage August 25, 2026August 25, 2026

Introduction

This Blueberry Lemon Icebox Cake is a refreshing no-bake dessert perfect for warm days. Layers of creamy lemony filling, sweet blueberry sauce, and crunchy graham crackers come together to create a delightful treat that’s both light and satisfying.

A slice of layered dessert is shown on a white plate with a detailed rim. The dessert has five visible layers of crunchy golden crackers evenly spaced with four creamy white layers in between filled with thick, dark purple berry sauce. The top layer is white cream with some berry sauce swirled on top. A thin lemon wedge and two fresh blueberries rest on the side of the slice, along with a small green mint leaf for decoration. A woman's hand with a fork is lifting a bite-sized piece of the dessert from the plate. In the corner, part of a bowl with fresh blueberries and a small dish with green mint leaves are visible, all sitting on a white marbled textured surface. photo taken with an iphone --ar 4:5 --v 7

Ingredients

2 teaspoons (6g) cornstarch
2 teaspoons fresh lemon juice
1 Tablespoon (15g/ml) warm water
2 cups (280g) fresh or frozen blueberries
2 Tablespoons (25g) granulated sugar
1 teaspoon lemon zest
2 cups (480g/ml) heavy cream or heavy whipping cream, cold
4 ounces (113g) full-fat brick cream cheese, softened to room temperature
6 Tablespoons (45g) confectioners’ sugar
1 Tablespoon fresh lemon juice
1 teaspoon lemon zest
8 full-sheet graham crackers
Optional for garnish: fresh blueberries, mint, lemon slices

Instructions

Step 1: Whisk the cornstarch, 2 teaspoons lemon juice, and warm water together in a small bowl until dissolved. Set aside.
Step 2: Warm the blueberries and granulated sugar in a small saucepan over medium heat, stirring continuously for about 3 minutes until juices release.
Step 3: Add the cornstarch mixture to the saucepan and stir for another 2–3 minutes, gently smashing some blueberries as the mixture thickens.
Step 4: Remove from heat, stir in 1 teaspoon lemon zest, and let the sauce cool completely. Refrigerate to speed cooling if desired.
Step 5: Line a 9×5-inch loaf pan with plastic wrap, leaving overhang for easy cake removal.
Step 6: Using a mixer, whip the cold heavy cream on medium-high speed until soft peaks form, about 3 minutes. Transfer to a separate bowl.
Step 7: In the same bowl, beat the softened cream cheese on high until smooth, about 1 minute. Add confectioners’ sugar, 1 tablespoon lemon juice, and 1 teaspoon lemon zest, beating until creamy.
Step 8: Gently fold the whipped cream into the cream cheese mixture without overmixing.
Step 9: Spread a thin layer of cream filling on the bottom of the pan to help crackers stick. Arrange a layer of graham crackers on top, breaking as needed to fit.
Step 10: Layer approximately 3/4 cup of cream filling over the crackers, followed by half the blueberry sauce, then another 3/4 cup of cream filling.
Step 11: Add another graham cracker layer, 3/4 cup cream filling, the remaining blueberry sauce, 3/4 cup cream filling, the last graham crackers, and finish with the remaining cream filling.
Step 12: Cover the pan with plastic wrap or foil and freeze for at least 4 hours or overnight.
Step 13: Before serving, refrigerate for 1 hour or let sit at room temperature for 10–15 minutes to soften. Lift the cake out using the plastic wrap overhang.
Step 14: Garnish with fresh blueberries, mint, and lemon slices as desired. Slice and serve cold.

Tips & Variations

Use fresh lemon zest for the brightest flavor and add extra for more tang.
Swap out blueberries for other berries like strawberries or raspberries for different variations.
For a gluten-free option, use gluten-free graham crackers.
Let the cake soften slightly before slicing to prevent cracking.

Storage

Store leftovers covered in the refrigerator for up to 3 days or in the freezer for up to 1 month. If frozen, thaw in the refrigerator overnight and allow to soften before serving for the best texture.