Ultra Thick Spring Sprinkle Cookie Bars

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You guys, these Ultra Thick Spring Sprinkle Cookie Bars are something special. Buttery, soft, and chewy cookie bars topped with the prettiest light-green frosting. We’re talking thick, plush, bakery-style cookie bars with golden edges and the softest centers that will have everyone coming back for seconds. One bite and you’re hooked.

Looking for even more spring and Easter baking ideas? Don’t miss this roundup of 45 Awesome Easter & Spring Desserts! Grab one of our 45 Awesome Easter & Spring Desserts Cookbooks or our Spring Dessert Bundle for all the spring baking inspiration you could ever want.

Ultra-thick spring sprinkle cookie bars with green frosting and pastel sprinkles

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Why You’ll Love These Ultra-Thick Spring Sprinkle Cookie Bars

  • SO thick and chewy. The extra egg yolk and chilling trick gives you those tall, plush bars with the softest centers.
  • Buttery, golden edges. That gorgeous golden crust on the outside with a melt-in-your-mouth middle? Yes please.
  • The frosting is everything. A silky, light-green buttercream that tastes like a cloud of vanilla sweetness. So pretty and so delicious.
  • Sprinkles galore! Pastel jimmies scattered on top. Spring has never looked this good.
  • Easy to make. One bowl, no mixer required (though a hand mixer helps), and the whole thing bakes in one 8×8 pan.

Can we ever have enough sprinkle cookie bar recipes? You also need to try these Birthday Sugar Cookie Bars and these Soft Sugar Cookies too.

Thick frosted bars stacked showing soft chewy texture with pastel sprinkles

Ingredients for Spring Sprinkle Cookie Bars

Let’s talk about what goes into these beauties. Everything is simple, pantry-friendly, and probably already in your kitchen. 🙂

Wet Ingredients

  • 3/4 cup unsalted butter, softened – this is the base of all that buttery goodness. Make sure it’s truly softened, not melted.
  • 3/4 cup light brown sugar, packed – gives those bars a rich, caramelly depth and keeps them extra soft.
  • 1/2 cup granulated sugar – for sweetness and a little crispness on the edges.
  • 1 large egg + 1 large egg yolk – the extra yolk is the trick that changes everything. It makes the bars super thick and chewy without being cakey.
  • 1 1/2 teaspoons vanilla extract – because we love vanilla around here.
  • 1/4 teaspoon almond extract (optional) – just a tiny bit adds the most gorgeous, subtle springtime flavor. This is the secret touch.

Dry Ingredients

  • 2 cups all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt

Mix-Ins

  • 1/2 cup pastel jimmies (optional) – stick with jimmies here. Nonpareils will bleed color into the dough and you’ll end up with a muddy mess instead of pretty pastel vibes.

Spring sprinkle cookie bar dough pressed into baking pan

How to Make Ultra Thick Spring Sprinkle Cookie Bars

  1. Prep the pan. Line an 8-inch pan with parchment paper and lightly mist with nonstick cooking spray.
  2. Cream the butter and sugars. Beat 3/4 cup softened butter, 3/4 cup brown sugar, and 1/2 cup granulated sugar for 2 to 3 minutes until light, fluffy, and pale.
  3. Add the eggs. Mix in 1 egg, 1 egg yolk, 1 1/2 teaspoons vanilla, and 1/4 teaspoon almond extract until smooth and creamy.
  4. Mix in the dry. Add 2 cups flour, 1/2 teaspoon baking soda, 1/2 teaspoon baking powder, and 1/2 teaspoon salt. Mix on low until a thick, soft dough forms.
  5. Fold in the sprinkles. Gently fold in 1/2 cup pastel jimmies.
  6. Press into the pan. Press the dough evenly into the prepared pan. Smooth the top with a spatula.
  7. Chill for thicker bars. For the thickest, puffiest bars, chill the pressed dough in the pan for 20 to 40 minutes. I chilled mine for 30 minutes and they came out wonderfully plush. Skip chilling if you prefer a softer, gooier center.
  8. Bake at 350 degrees F for 26 to 32 minutes until the edges are lightly golden, the top is set, and the center no longer looks shiny.
  9. Cool completely. Let them cool for at least 45 minutes before lifting out and slicing or adding frosting.

How to Make Light Green Spring Frosting

This frosting is SO good. It’s silky, sweet, and that soft green color is just gorgeous on top of the bars.

  1. Beat 1/2 cup (1 stick) softened unsalted butter for 1 to 2 minutes until smooth and creamy.
  2. Add 1 1/2 cups powdered sugar, 1 to 2 tablespoons milk or cream, 1 teaspoon vanilla extract, and a pinch of salt.
  3. Mix on low until the sugar is incorporated, then beat on medium-high for 2 to 3 minutes until it’s light and fluffy.
  4. Now the fun part! Add a tiny drop of green food coloring (or green plus a touch of blue for a soft minty shade). Mix until the color is even.
  5. Adjust as needed: more powdered sugar for thicker frosting, a splash of milk for a softer spread.
  6. Spread over the completely cooled cookie bars and go wild with extra pastel sprinkles on top.

Short on time? Store-bought frosting works beautifully too. Just tint it with a drop of green food coloring and you’ll still get that pretty, bakery-style finish.

Bakery-style spring sprinkle cookie bars with light green frosting

Tips for the Thickest Spring Cookie Bars

  • Use an 8×8 pan, not a 9×13. This is the trick for thick cookie bars. The smaller pan means taller, thicker bars with plush centers. A 9×13 will give you thinner, crispier bars.
  • Don’t skip the extra egg yolk. The extra yolk adds richness and chew without making the bars cakey. I promise it matters.
  • Chill the dough. Even 20 minutes of chilling makes a difference. The bars will puff up taller and hold their shape better in the oven.
  • Don’t overbake. Pull them when the center still looks slightly underset. They firm up as they cool and you’ll get that chewy center.
  • Use a metal pan. Metal conducts heat more evenly than glass, so you get golden edges without an overdone bottom.

Also, if you love thick, chewy bars, check out these Marshmallow Peanut Butter Chocolate Bliss Bars and these Spring M&M Chocolate Chip Cookies!

Spring sprinkle cookie bars with green buttercream frosting cut into squares on parchment paper

How to Store Spring Sprinkle Cookie Bars

Store cookie bars in an airtight container at room temperature for up to 5 days. The brown sugar keeps them soft and chewy for days, so they actually taste amazing on day two and three. Layer parchment paper between rows if you’re stacking them so the frosting doesn’t stick. You can also refrigerate frosted bars for up to 7 days. Let them come to room temperature for about 15 minutes before serving for the best texture.

Can You Freeze Sprinkle Cookie Bars?

Yes! Freeze unfrosted bars wrapped tightly in plastic wrap and foil for up to 3 months. Thaw overnight in the fridge, then frost before serving. You can also freeze frosted bars, but flash-freeze them uncovered on a baking sheet first so the frosting sets, then wrap individually.

Variations for Spring Cookie Bars

  • Lemon spring bars: Add 1 tablespoon fresh lemon zest to the dough and swap the almond extract for lemon extract. So fresh and bright.
  • White chocolate chip spring bars: Fold in 1/2 cup white chocolate chips along with the sprinkles for extra richness and pockets of melty goodness.
  • Easter egg cookie bars: Top with mini chocolate eggs or Cadbury Mini Eggs instead of sprinkles for the cutest Easter dessert.
  • Pink frosting version: Swap the green food coloring for a tiny drop of pink for a Valentine’s Day or baby shower vibe.
  • Cream cheese frosting: Use 4 oz cream cheese plus 2 tablespoons softened butter, 1 1/2 cups powdered sugar, and 1 teaspoon vanilla. It’s tangier and SO rich on these bars.

Close-up of thick chewy spring cookie bar with green frosting and sprinkles

Soft and Chewy Spring Sprinkle Cookie Bars FAQ

Can I Use a 9×13 Pan for these soft and chewy cookie Bars?

You can, but the bars will be thinner and crispier rather than thick and chewy. If using a 9×13, reduce baking time by about 5 to 8 minutes and watch closely for golden edges.

Why Do Sprinkles Bleed Into Cookie Bar Dough if I Add them to the Dough before Baking?

Nonpareil sprinkles tend to bleed because of their thin candy coating. Stick with jimmies (the rod-shaped ones) for baking. They hold their color and shape much better in the oven.

Do I Have to Chill Cookie Bar Dough?

Chilling is optional but highly recommended for the thickest bars. Chilled dough spreads less in the oven, so you get taller, puffier bars with that bakery-style look. Even 20 minutes helps. I love this tip!

Can I Make Spring Sprinkle Cookie Bars Ahead of Time?

Absolutely. Bake the bars and store them unfrosted for up to 2 days at room temperature. Frost and add sprinkles right before serving for the freshest look. The bars actually taste even better the next day because the flavors have time to develop.

baked treat

These Ultra Thick Spring Sprinkle Cookie Bars are the kind of treat that just makes a day brighter. They’re buttery, plush, and loaded with pastel sprinkles, with that dreamy light‑green frosting that feels straight out of a bakery case. Every bite is soft, chewy, and a little bit magical — the kind of dessert people remember and immediately ask for the recipe.
Bake them for spring parties, Easter brunch, or just because you want something pretty and irresistible cooling on your counter. Once you try them, they’ll become one of those “why don’t I make these more often?” recipes.

So are you ready for the most buttery, sprinkle-loaded, thick and chewy spring cookie bars with that gorgeous green frosting on top? Let’s get baking! Tag me on Pinterest, Instagram and Facebook, I’d love to see your spring cookie bar masterpieces.

More Spring CookieS & Bar Recipes + Easter Treats

Ultra-Thick Spring Sprinkle Cookie Bars

Buttery, thick, and chewy spring cookie bars loaded with pastel sprinkles and topped with a silky light-green frosting. These bakery-style bars bake up tall with golden edges and plush centers in an 8x8 pan.
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Prep Time 20 minutes
Cook Time 30 minutes
cool time 30 minutes
Total Time 1 hour 20 minutes
Course Dessert
Cuisine American
Servings 12 bars
Calories 430 kcal

Equipment

  • 8x8 metal baking pan
  • Parchment paper
  • Hand mixer or stand mixer
  • Large mixing bowl
  • Offset spatula

Ingredients
  

Cookie Bar Dough

Light Green Frosting

  • ½ cup unsalted butter softened
  • 1 ½ to 2 cups powdered sugar
  • 1 to 2 tablespoons milk or heavy cream
  • 1 teaspoon vanilla extract
  • 1 pinch fine sea salt
  • 1 tiny drop green food coloring or green plus a touch of blue for a soft minty shade

Instructions
 

  • Line an 8x8 metal pan with parchment paper and lightly mist with nonstick spray.
  • Beat 3/4 cup softened butter, 3/4 cup brown sugar, and 1/2 cup granulated sugar for 2 to 3 minutes until light, fluffy, and pale.
  • Mix in 1 egg, 1 egg yolk, 1 1/2 teaspoons vanilla extract, and 1/4 teaspoon almond extract until smooth and creamy.
  • Add 2 cups flour, 1/2 teaspoon baking soda, 1/2 teaspoon baking powder, and 1/2 teaspoon salt. Mix on low until a thick, soft dough forms.
  • Gently fold in 1/2 cup pastel jimmies.
  • Press the dough evenly into the prepared pan. Smooth the top with a spatula.
  • For thicker, puffier bars, chill the pressed dough in the pan for 20 to 40 minutes. (I chilled mine for 30 minutes.) Skip chilling for a softer, gooier center.
  • Bake at 350 degrees F for 26 to 32 minutes, until the edges are lightly golden, the top is set, and the center no longer looks shiny.
  • Cool at least 45 minutes before lifting out and slicing or adding frosting.
  • For the frosting: Beat 1/2 cup softened butter for 1 to 2 minutes until smooth. Add 1 1/2 cups powdered sugar, 1 to 2 tablespoons milk, 1 teaspoon vanilla, and a pinch of salt. Mix on low, then beat on medium-high for 2 to 3 minutes until fluffy.
  • Add a tiny drop of green food coloring and mix until the color is even. Adjust with more powdered sugar for thickness or milk for a softer spread.
  • Spread the frosting over the completely cooled cookie bars and top with extra pastel sprinkles.

Notes

Pan size: Use an 8x8 pan for thick, ultra-chewy bars. A 9x13 will work but bars will be thinner and crispier. Reduce baking time by 5 to 8 minutes.
Sprinkles: Use jimmies (rod-shaped) for baking. Nonpareils will bleed color into the dough.
Chilling: Chilling is optional but recommended for the thickest bars. Even 20 minutes makes a noticeable difference.
Storage: Store in an airtight container at room temperature for up to 5 days, or refrigerate for up to 7 days.
Freezing: Freeze unfrosted bars wrapped in plastic wrap and foil for up to 3 months.
Nutrition values are estimates based on 12 servings.

Nutrition

Serving: 1gCalories: 430kcalCarbohydrates: 59gProtein: 3gFat: 21gSaturated Fat: 13gPolyunsaturated Fat: 1gMonounsaturated Fat: 5gTrans Fat: 1gCholesterol: 81mgSodium: 160mgPotassium: 74mgFiber: 1gSugar: 43gVitamin A: 634IUCalcium: 33mgIron: 1mg
Keyword baking, buttery, chewy, cookie bars, Easter cookie bars, frosted cookie bars, spring cookie bars, spring dessert bars, spring sprinkle cookie bars, sprinkle cookie bars
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