Five-Ingredient Lemon Blueberry Bars

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Bright and tangy lemon bars studded with juicy blueberries, made effortlessly with just five ingredients for a fresh, homemade treat. This american-inspired desserts ready in about 48 minutes layers all-purpose flour, powdered sugar, unsalted butter, cold and diced into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 210 calories and feeds 9, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 38 min Serves 9 American cuisine 210 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat the oven to 350°F. In a medium bowl, combine 1 1/2 cups all-purpose flour and 1/2 cup powdered sugar. Add 3/4 cup cold diced unsalted butter and use a pastry cutter or your fingers to blend until the mixture forms coarse crumbs.
  2. Step 2: Press the crumb mixture evenly into the bottom of an 8x8-inch baking pan. Bake for 18 minutes until lightly golden on the edges; remove from oven.
  3. Step 3: In a small bowl, gently fold 1 cup fresh blueberries into 1 cup lemon curd.
  4. Step 4: Spread the lemon and blueberry mixture evenly over the warm crust, then return to the oven and bake for an additional 20 minutes until the filling is set.
  5. Step 5: Let the bars cool completely in the pan, then dust the top with the remaining 1/4 cup powdered sugar before cutting into squares and serving.

Equipment for this recipe

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Frequently asked questions

How long does Five-Ingredient Lemon Blueberry Bars take to make?

Total time is about 48 minutes (10 min prep + 38 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover Five-Ingredient Lemon Blueberry Bars?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in Five-Ingredient Lemon Blueberry Bars?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Five-Ingredient Lemon Blueberry Bars for a different number of people?

The recipe is written for 9 servings. Multiply each ingredient by (your serving target / 9). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Five-Ingredient Lemon Blueberry Bars?

American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.