If you’re a fan of chewy cookies, creamy pudding, or just anything with pistachios, then let me introduce you to your new dessert obsession: Pistachio Pudding Sugar Cookie Bars. These bars offer everything you want in a sweet treat: the rich flavor of pistachio, buttery cookie goodness, and a glaze that brings everything together in one stunning bite. Whether you’re baking for a party, potluck, or just to treat yourself, these cookie bars always deliver—bright color, delicious flavor, and a fun twist on a classic.

Ingredients You’ll Need
What I love most about these Pistachio Pudding Sugar Cookie Bars is how simple yet deliberate each ingredient is. Every item on the list plays an important role: from giving the bars their signature flavor to ensuring the perfect chewy texture and gorgeous presentation.
- Unsalted butter: Softened butter is the base of your bars, making them rich and tender, while also helping blend all the other flavors.
- Granulated sugar: Brings structure and sweetness, ensuring our cookie bars bake up just right.
- Brown sugar: Adds a hint of caramel flavor and extra chewiness to the bars.
- Eggs: Help bind the dough and give your bars that soft, cakey bite.
- Instant pistachio pudding mix: The secret star! This provides the signature pistachio flavor and brilliant green color.
- All-purpose flour: Gives your bars substance while keeping the crumb soft.
- Baking powder: Ensures your bars rise just enough, without becoming cakey.
- Salt: Balances all the sweetness and wakes up the pistachio flavor.
- Powdered sugar: Creates a silky glaze for a lovely finish.
- Milk: Thins out your glaze so it’s perfectly pourable.
- Shelled pistachios, chopped: A final sprinkle for crunch, color, and even more pistachio personality.
How to Make Pistachio Pudding Sugar Cookie Bars
Step 1: Prepare Your Pan
Begin by preheating your oven to 350°F (175°C), and lightly grease a 9×13 inch baking pan. This bit may seem basic, but it’s essential: it not only helps prevent sticking, but also ensures even baking. I recommend a quick line of parchment paper if you want effortless removal later on.
Step 2: Cream Butter and Sugars
In a large mixing bowl, use a hand or stand mixer to beat together the softened butter, granulated sugar, and brown sugar. Take your time with this, as creaming until light and fluffy really creates that signature soft base for your Pistachio Pudding Sugar Cookie Bars. Don’t rush—it’s worth the extra couple of minutes.
Step 3: Add Eggs and Pistachio Pudding Mix
Once your butter and sugars are perfectly combined, add the eggs one at a time, mixing well after each addition. Next, blend in the dry instant pistachio pudding mix. This step infuses your batter with that irresistible flavor and turns it a lovely shade of green—a true showstopper!
Step 4: Incorporate Dry Ingredients
In a separate bowl, whisk together the flour, baking powder, and salt. Gradually add this to your wet ingredients, mixing on low just until the batter comes together. Overmixing can make your bars tough, so stop as soon as you don’t see any more dry flour.
Step 5: Spread Batter and Bake
The batter will be thick, so use a spatula to spread it evenly into your prepared pan. Bake for 20–25 minutes, until the edges are golden and the center is just set. Be careful not to overbake—part of the magic of Pistachio Pudding Sugar Cookie Bars lies in their chewy texture, so less is more here.
Step 6: Cool Completely
Allow the bars to cool completely in the pan on a wire rack. This is important! Cutting while warm can cause the bars to fall apart or the glaze to soak in unevenly, so let your patience pay off.
Step 7: Glaze and Garnish
Whisk together powdered sugar and milk to make a thin, pourable glaze. Drizzle generously over the cooled bars, then immediately sprinkle with chopped pistachios before the glaze sets. This final flourish not only looks beautiful but adds a nutty crunch that complements the soft cookie center.
How to Serve Pistachio Pudding Sugar Cookie Bars

Garnishes
To make your Pistachio Pudding Sugar Cookie Bars really pop, garnish with extra chopped pistachios or even a few edible flowers if you’re feeling fancy. The green of the nuts over the pale glaze creates a picture-perfect finish that invites everyone to take a bite. You could even dust a little extra powdered sugar on top for a snowy effect during the holidays!
Side Dishes
Since these bars are sweet and rich, serve them alongside fresh berries, a dollop of whipped cream, or even a scoop of vanilla ice cream. These additions balance out the flavors, cutting through the sweetness and giving each serving an extra-special touch.
Creative Ways to Present
Don’t stop at basic squares! For parties or holidays, cut your Pistachio Pudding Sugar Cookie Bars into fun shapes with a cookie cutter, stack them in layers with parchment for a dessert tower, or box them up as edible gifts. You can also serve tiny bites with coffee or set them among other bars for a colorful dessert platter.
Make Ahead and Storage
Storing Leftovers
It’s easy to keep Pistachio Pudding Sugar Cookie Bars tasting fresh. Store them in an airtight container at room temperature for up to four days. Layer parchment or wax paper between the bars to prevent sticking, and keep them away from direct sunlight or heat.
Freezing
To freeze, wrap the cooled and cut bars individually in plastic wrap and place them in a freezer-safe bag or container. They’ll keep perfectly for up to two months. When you’re ready to enjoy, thaw at room temperature for an hour or two—good as new!
Reheating
While these bars are best enjoyed at room temperature, you can gently warm individual pieces in the microwave for 8-10 seconds if you want that freshly-baked feel. Just be careful not to overdo it, as the glaze will melt quickly and the bars can become too soft.
FAQs
Can I use regular pudding mix instead of instant?
For the best results, stick with instant pistachio pudding mix. Regular (cook-and-serve) pudding reacts differently in the batter, which can change the texture and rise of your Pistachio Pudding Sugar Cookie Bars.
Do I need to chill the dough?
Nope! One of the joys of this recipe is that there’s no chilling required. Just mix, bake, cool, and enjoy.
Can I substitute other nuts?
Absolutely. While pistachios are classic here, feel free to use chopped almonds or even a mix of your favorite nuts for the topping.
How do I make these gluten-free?
Swap the all-purpose flour for a 1:1 gluten-free baking blend. Keep an eye on texture during mixing, as some blends can be more absorbent or produce a slightly different crumb.
Can I double this recipe?
Yes! For larger gatherings, double the ingredients and use two pans. Just remember to rotate the pans halfway through baking for even results.
Final Thoughts
If you need a sweet, crowd-pleasing traybake that’s a little bit unexpected, you’ll love whipping up these Pistachio Pudding Sugar Cookie Bars. From their bright color and irresistible flavor to their chewy bite, they’re the kind of treat that always has people asking for the recipe. Will you give them a try?