Fun-derful Funfetti Cookie Bars

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Chewy, vibrant bars swirled with rainbow sprinkles and a tangy lemon glaze that make every bite a celebration. This american-inspired desserts (vegan) ready in about 45 minutes layers all-purpose flour, unsalted butter, granulated sugar 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 280 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.

★ 3.8 (15 ratings) Prep: 20 min Cook: 25 min Serves 9 American cuisine 280 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 350°F (175°C) and line an 8x8-inch baking pan with parchment paper.
  2. Step 2: Cream 1/2 cup softened unsalted butter, 1/2 cup granulated sugar, and 1/2 cup brown sugar in a bowl until light and fluffy, about 3 minutes with an electric mixer.
  3. Step 3: Beat in 1 large egg and 1 tsp vanilla extract until fully incorporated.
  4. Step 4: Gradually add 1 1/2 cups all-purpose flour and mix until a dough forms — do not overmix.
  5. Step 5: Press 3/4 of the dough evenly into the prepared pan, then sprinkle 1/2 cup rainbow sprinkles over the top.
  6. Step 6: Crumble the remaining dough over the sprinkles and press gently to adhere.
  7. Step 7: Bake for 22-25 minutes until golden around the edges and the center feels set when lightly touched.
  8. Step 8: While baking, whisk 2 tbsp lemon juice and 1 cup confectioners' sugar in a small bowl until smooth and pourable.
  9. Step 9: Let bars cool completely in the pan, then drizzle with lemon glaze and slice into squares.

Equipment for this recipe

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Frequently asked questions

How long does Fun-derful Funfetti Cookie Bars take to make?

Total time is about 45 minutes (20 min prep + 25 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 Fun-derful Funfetti Cookie 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 Fun-derful Funfetti Cookie 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 Fun-derful Funfetti Cookie 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.

Is Fun-derful Funfetti Cookie Bars vegan?

Yes — this recipe is tagged vegan based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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