Blueberry Lemon Poke Cake makes short work of dessert prep by starting with a simple boxed cake and layering bright blueberry and lemon flavors.
Blueberry Lemon Poke Cake
This Blueberry Lemon Poke Cake is an easy, crowd-pleasing dessert that comes together quickly without sacrificing flavor. I used a white boxed cake mix and a boxed vanilla cook-and-serve pudding for convenience — plus a simple homemade blueberry sauce and a luscious white chocolate buttercream frosting. The result is a moist, tangy, and creamy cake that’s perfect for gatherings or a special weeknight dessert.
The blueberry sauce simmers on the stove to concentrate the flavor and thicken slightly; a splash of lemon brightens the berries and ties everything back to the cake. While the sauce cooks, you prepare the cake batter, adding lemon zest for an extra citrus lift. Once baked and poked, pockets of blueberries and pudding create a moist, flavorful interior under a cloud of white chocolate frosting.
To make the blueberry sauce, combine frozen blueberries, water, and sugar in a medium saucepan over medium heat. Stir frequently as the mixture comes to a simmer and cooks until it reduces and thickens. Add lemon juice to taste and set the sauce aside to cool slightly. Reserve a small portion of the sauce for garnishing the finished cake.
Prepare the cake mix according to package directions, folding in one teaspoon of lemon zest to the batter. Pour the batter into a prepared 9×13-inch pan and bake as directed. While the cake bakes, prepare the vanilla pudding on the stovetop using the cook-and-serve pudding mix and half-and-half; finish the pudding according to the package instructions until thickened.
When the cake comes out of the oven, allow it to cool for 3–5 minutes, then use the handle of a wooden spoon (or a similar tool) to poke holes evenly across the surface. Spoon the blueberry sauce into about half of the holes, making sure to press some of the berries down into the cake so their juices soak in. Save about one third of a cup of sauce for the top of the cake.
Pour the remaining prepared pudding over the cake, spreading it gently to cover the surface and to allow pudding to seep into the rest of the holes. Chill the cake for 30 minutes to an hour to let the pudding set and the flavors meld before frosting.
The white chocolate frosting is decadently simple: melt white chocolate with unsalted butter in a double boiler until smooth, then chill until firm. Once chilled, whip the mixture until light and fluffy to create a rich, spreadable frosting. Dollop or spread the frosting evenly over the chilled cake, then drizzle the reserved blueberry sauce on top for a bright finishing touch.
Recipe Details
Yield: 12 servings
Prep Time: 40 minutes | Cook Time: 35 minutes | Total Time: 1 hour 15 minutes
Ingredients
Blueberry Sauce
- 2 cups frozen blueberries
- ½ cup water
- ¾ cup sugar
- 1–2 tablespoons lemon juice, to taste
Cake
- 1 box white cake mix (prepare according to package directions)
- 1 teaspoon lemon zest
Pudding
- 1 large box cook-and-serve vanilla pudding mix
- 2 cups half-and-half (for cooking the pudding)
- ¼–½ cup additional cold half-and-half to finish, if needed
Frosting
- 2 cups white chocolate (chopped or chips)
- 1 cup unsalted butter
Instructions
- Preheat the oven to 350°F (175°C). In a medium saucepan, combine the blueberries, water, and sugar. Bring to a simmer over medium heat, stirring frequently, and cook until the mixture reduces and thickens. Stir in lemon juice to taste, then set the sauce aside to cool slightly.
- While the sauce is simmering, prepare the cake batter according to package directions, adding the lemon zest to the batter before pouring it into a greased 9×13-inch pan. Bake as directed on the package.
- During the last 10 minutes of baking, prepare the pudding: combine the cook-and-serve pudding mix with 2 cups of half-and-half and cook, stirring constantly, until thickened. Remove from heat and set aside.
- Remove the cake from the oven and let it cool for 3–5 minutes. Use the handle of a wooden spoon or similar tool to poke holes evenly across the surface. Spoon blueberry sauce into about half of the holes, pressing some berries into the cake. Reserve about ⅓ cup of sauce for garnish.
- Stir the remaining ½ cup of cold half-and-half into the pudding if needed to reach a pourable consistency. Pour the pudding over the cake, spreading gently so some flows into the remaining holes. Chill the cake for 30 minutes to an hour.
- Make the frosting by melting white chocolate and butter together in a double boiler until smooth. Refrigerate the mixture until firm, about 20–30 minutes. Once chilled, whip the mixture with a mixer until light and fluffy.
- Remove the cake from the refrigerator and spread or dollop the whipped white chocolate frosting evenly over the top. Garnish with the reserved blueberry sauce and serve.
Nutrition Information (per serving)
Calories: 437 · Total Fat: 30g · Saturated Fat: 18g · Trans Fat: 0g · Unsaturated Fat: 10g · Cholesterol: 62mg · Sodium: 88mg · Carbohydrates: 40g · Fiber: 1g · Sugar: 37g · Protein: 4g
Tips: Use frozen blueberries so the sauce is available year-round; cook them slowly to concentrate the flavor without burning. When melting white chocolate, keep the heat gentle and stir constantly to prevent scorching. Chilling the pudding layer before frosting helps the frosting spread smoothly without sliding.
Variations: Swap a lemon cake mix if you prefer a more pronounced lemon base, or use fresh blueberries in season for a brighter, fresher sauce. You can also simplify the frosting by topping the chilled pudding layer with whipped cream if you want a lighter finish.
More cake ideas
Checkerboard Marble Cake · Homemade Marble Pound Cake · Toasted Coconut Cake · Blueberry Pudding Lemon Poke Cake · Super Chocolate Hot Fudge Brownie Cake
