Old-Fashioned Blueberry Yum Yum Recipe: No-Bake Dessert

Old-fashioned blueberry yum yum is a chilled American layered dessert made with a buttery graham cracker crust, a sweet cream cheese filling, blueberry pie filling, and whipped topping. It is easy to assemble without turning on the oven, and the layers firm up in the refrigerator for neat, creamy slices that are well suited to potlucks and family gatherings.

Ingredients

2 cups (200 g) graham cracker crumbs, finely crushed
1/2 cup (113 g) unsalted butter, melted
1/4 cup (50 g) granulated sugar
1/8 teaspoon (0.7 g) fine salt
8 ounces (226 g) full-fat cream cheese, softened to room temperature
1 cup (120 g) powdered sugar, sifted if lumpy
1 teaspoon (5 ml) vanilla extract
2 containers (8 ounces/226 g each) frozen whipped topping, thawed in the refrigerator and divided
2 cans (21 ounces/595 g each) blueberry pie filling

Instructions

Prepare the pan and crumbs. Lightly grease a 9-by-13-inch (23-by-33-cm) baking dish, or line it with a parchment sling if you want to lift out the chilled dessert. Stir the graham cracker crumbs, melted butter, sugar, and salt in a bowl until the crumbs are evenly damp and resemble wet sand. If you squeeze a little in your palm, it should hold together. If it still looks powdery, mix in another teaspoon of melted butter.
Press and chill the crust. Tip the crumb mixture into the dish and press it into an even, compact layer, paying particular attention to the corners. The flat bottom of a measuring cup makes it easier to press firmly without leaving loose patches. Refrigerate the crust for at least 15 minutes while you make the filling. This short chill helps the butter set so the base is less likely to crumble when served.
Make the cream cheese layer. Beat the softened cream cheese with an electric mixer on medium speed until smooth, scraping the bowl once or twice. Add the powdered sugar and vanilla and beat on low at first, then increase to medium until the mixture is creamy and no dry sugar remains. Starting with softened cream cheese is important: cold cream cheese can leave small lumps that are difficult to smooth out later.
Fold in the whipped topping. Add one 8-ounce (226-g) container of thawed whipped topping to the cream cheese mixture. Fold gently with a flexible spatula, turning the mixture from the bottom of the bowl over the top until it looks light and evenly blended. Avoid vigorous stirring, which can deflate the filling. Spread this layer over the chilled crust, taking it all the way to the edges so the blueberry filling will not seep down the sides.
Add the blueberry layer. Spoon the blueberry pie filling over the cream cheese layer in several small mounds, then spread it carefully into an even layer. Use the back of a spoon or an offset spatula and work gently rather than pressing down; the filling below is soft at this stage. Use both cans for a generous fruit layer. If the filling is especially loose, let excess syrup drain briefly from a few spoonfuls before spreading.
Finish with whipped topping. Spread the remaining 8-ounce (226-g) container of thawed whipped topping over the blueberries. For a tidy finish, place small dollops across the surface first and connect them with a light spreading motion. Keep the dessert covered and refrigerate it for at least 4 hours, until the layers are cold and firm enough to cut. For the cleanest squares, chill it overnight.
Slice and serve. Cut into 12 portions with a long, sharp knife. Wipe the blade with a damp cloth between cuts if you want the layers to show clearly. Serve cold, lifting each piece with a thin spatula. The bottom crust is tender rather than crisp, which is part of the soft, spoonable character of this no-bake dessert.

Tips

Soften the cream cheese fully. Leave it at room temperature for about 30 to 45 minutes, or cut it into small cubes to speed softening. Do not melt it in the microwave; warm, runny cream cheese can make the filling loose and harder to spread.
Choose the right whipped topping. Thaw frozen topping in the refrigerator according to its package directions, not on the counter. If you prefer homemade whipped cream, beat 1 cup (240 ml) cold heavy cream with 2 tablespoons (15 g) powdered sugar to stiff peaks for each 8-ounce (226-g) container needed. Homemade cream is less stable, so the dessert may soften sooner and is best served within a day.
Press the crust evenly. A thin or loosely packed patch may break when you serve the dessert. Compact the crumbs across the full dish, but do not pack them so hard that the base becomes difficult to cut.
Keep the layers distinct. Use gentle pressure when spreading the blueberry filling and the top layer. Chilling for the full four hours matters; cutting too soon can make the cream cheese layer slide and blur into the fruit.

Serving Suggestions

Serve blueberry yum yum straight from the refrigerator as a cool dessert after a cookout, holiday meal, or casual Sunday dinner. The recipe makes 12 generous squares, or you can cut it into smaller portions when there are several desserts on the table. A small bowl of fresh blueberries alongside each serving adds a fresh, tart note, while a few thin strips of lemon zest provide a bright contrast to the sweet filling.

Because the dessert is rich and creamy, it pairs well with simple coffee, black tea, or a glass of cold milk. If you are serving it buffet-style, keep the dish chilled between servings and set out only what guests are likely to eat within two hours. A pie server or narrow spatula is more useful than a spoon for lifting layered portions intact.

Variations

Use a different fruit filling: Cherry, strawberry, or peach pie filling can replace the blueberry filling in the same quantity. The result keeps the same creamy layers but changes the fruit flavor and color. If using a particularly syrupy filling, drain a little of the excess liquid before spreading it so the middle layer stays in place.

Make a homemade crumb base: Replace the graham crackers with vanilla wafer crumbs or digestive biscuit crumbs, keeping the same total crumb weight and butter amount. Vanilla wafers make the base sweeter and more delicate; digestive biscuits have a more toasted, slightly less sweet flavor. A finely crushed shortbread cookie base also works, but it may need a little less butter because some cookies contain more fat.

Add a lemon note: Beat 1 teaspoon (2 g) finely grated lemon zest into the cream cheese with the vanilla. The citrus gives the filling a fresher edge without making it taste like a separate lemon layer. Avoid adding much lemon juice, which can loosen the filling.

Make individual portions: Layer the crumbs, cream cheese mixture, blueberry filling, and topping in 12 small cups or jars. Press the crumbs lightly rather than compacting them as firmly as in a pan. Chill the covered cups for at least 4 hours; individual servings are convenient for a picnic or buffet, but keep them refrigerated until serving.

Storage and Reheating

Cover the baking dish tightly or transfer portions to an airtight container and refrigerate within 2 hours of serving. The dessert keeps well for 3 to 4 days in the refrigerator, although the crust gradually softens as it absorbs moisture from the layers. Keep it cold whenever it is not being served, and discard portions that have been left at room temperature for more than 2 hours.

Blueberry yum yum is served chilled and does not need reheating. Freezing is possible, though the texture of the cream cheese and whipped topping may be a little less smooth after thawing. For best quality, freeze tightly wrapped portions for up to 1 month, then thaw them overnight in the refrigerator and serve cold. Do not thaw it on the counter, and do not refreeze portions that have been thawed.

Frequently Asked Questions

Can I make blueberry yum yum the day before?

Yes. Making it the day before gives the layers plenty of time to set and makes serving easier. Cover the pan once the topping is in place and refrigerate it overnight. Add any fresh berries or lemon zest just before serving so they stay fresh and do not release extra moisture onto the topping.

Can I use fresh blueberries instead of pie filling?

Fresh blueberries alone will not give the dessert the same thick, spoonable fruit layer. You can use a cooked blueberry compote in place of the canned filling, but cool it completely before layering it over the cream cheese mixture. A warm compote can soften the filling, and a very loose one may run when the dessert is sliced.

Why is my blueberry yum yum runny?

The most common reasons are cream cheese that was too warm, whipped topping that was not fully thawed or was overmixed, a very loose pie filling, or too little chilling time. Make sure the cream cheese is softened but not melted, fold rather than beat in the topping, and refrigerate the completed dessert for at least 4 hours. Overnight chilling helps if your refrigerator is frequently opened or runs warm.

Can I make this recipe without a mixer?

Yes, if the cream cheese is thoroughly softened. Use a sturdy whisk or wooden spoon to work it smooth before adding the powdered sugar, then fold in the whipped topping with a spatula. A mixer makes it easier to remove lumps, but careful hand mixing works; avoid adding the whipped topping until the cream cheese mixture is smooth.

Can I use a graham cracker crust from the store?

A ready-made crust is usually too small and shallow for the full layered recipe, which is designed for a 9-by-13-inch (23-by-33-cm) dish. You can make a smaller version in a standard store-bought crust by reducing the filling and fruit layers, but the portions and layer thickness will differ. For the recipe as written, making the crumb base in the pan gives the right proportions and enough servings.

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