St. Patrick’s Day is a holiday filled with fun, festivities, and of course, delicious treats. These St. Patrick’s Day Sugar Cookie Bars bring a sweet and celebratory touch to the occasion with their soft, buttery cookie base and creamy green frosting. Whether you’re hosting a St. Patrick’s Day party, baking for a school event, or simply looking to add a touch of holiday spirit to your dessert table, these bars are the perfect choice.
These cookie bars take everything you love about classic sugar cookies and make them easier to prepare and serve. No rolling, cutting, or shaping—just mix, press into a pan, and bake. With their vibrant green frosting and festive sprinkles, these bars are fun, colorful, and absolutely delicious.
Why These St. Patrick’s Day Sugar Cookie Bars Are a Must-Try
1. No Rolling or Cutting Required
Traditional sugar cookies require rolling out dough, cutting shapes, and carefully transferring them to a baking sheet. These cookie bars simplify the process by baking everything in one pan, making them quicker and easier without sacrificing that soft, chewy sugar cookie texture.
2. Perfectly Soft and Chewy
Unlike some sugar cookies that can turn out dry or too crisp, these bars are thick, soft, and buttery with just the right amount of chewiness. The creamy frosting on top adds the perfect balance of sweetness and texture.
3. Fun and Festive for St. Patrick’s Day
The green frosting and holiday-themed sprinkles make these bars a perfect addition to any St. Patrick’s Day party, bake sale, or dessert table. They capture the fun and color of the holiday in every bite.
4. Great for Large Gatherings
Instead of baking multiple batches of cookies, this recipe makes one big pan of cookie bars that can be cut into squares, making it a great choice for feeding a crowd.
5. Customizable for Any Holiday or Occasion
While these bars are perfect for St. Patrick’s Day, they can easily be adapted for any holiday or event by changing the frosting color and sprinkles.
A Brief History of Sugar Cookies
Sugar cookies have been a beloved dessert for centuries, originating in the 1700s when German settlers in Pennsylvania created the first versions of these buttery, sweet treats. Over time, sugar cookies became a staple for holiday baking, often decorated with frosting, sprinkles, or colored sugar.
While traditional sugar cookies require rolling out dough and cutting shapes, sugar cookie bars offer the same great taste in a much simpler form. By baking the dough in a single pan and slicing it into bars, bakers can achieve the same buttery, soft texture without the extra effort.
Tips for Making the Best Sugar Cookie Bars
1. Use High-Quality Butter for the Best Flavor
Since butter is one of the key ingredients, using a high-quality unsalted butter will make a noticeable difference in the flavor and texture of your bars.
2. Don’t Overmix the Dough
Overmixing can lead to a tougher texture. Mix just until the ingredients are combined to keep the bars soft and tender.
3. Use Gel Food Coloring for Vibrant Frosting
Gel food coloring provides bold, bright colors without thinning the frosting, making it the best choice for achieving a rich green hue for St. Patrick’s Day.
4. Let the Cookie Bars Cool Completely Before Frosting
If the bars are still warm when frosting is applied, the butter in the frosting will melt and create a messy consistency. Let them cool completely for a smooth finish.
5. Customize the Flavor of the Frosting
Adding a small amount of almond extract, lemon zest, or even a splash of Irish cream liqueur can give the frosting a unique and delicious twist.
St. Patrick’s Day Sugar Cookie Bars: Festive Treats for the Celebration
Ingredients:
For the Cookie Bars:
- 1 cup unsalted butter, softened
- 2 cups granulated sugar
- 4 large eggs
- 2 teaspoons vanilla extract
- 1 teaspoon salt
- ½ teaspoon baking soda
- 5 cups all-purpose flour
For the Frosting:
- 5 cups powdered sugar
- 1 cup unsalted butter, softened
- ¼ to ½ teaspoon almond extract
- 6 tablespoons milk
- Green food coloring
- St. Patrick’s Day-themed sprinkles
Directions:
- Prepare the Pan: Grease a standard rimmed cookie sheet (approximately 12×17 inches) and set aside.
- Mix the Dough: In a large bowl, cream together the softened butter and granulated sugar until light and fluffy. Add the eggs one at a time, ensuring each is fully incorporated before adding the next. Stir in the vanilla extract.
- Combine Dry Ingredients: In a separate bowl, whisk together the salt, baking soda, and all-purpose flour. Gradually add this dry mixture to the wet ingredients, mixing until just combined.
- Bake the Bars: Evenly press the dough into the prepared cookie sheet. Bake in a preheated oven at 375°F (190°C) for about 15 minutes, or until the edges are lightly golden. Remove from the oven and allow to cool completely.
- Prepare the Frosting: In another bowl, beat the softened butter until smooth. Add 4 tablespoons of milk, almond extract, and a few drops of green food coloring; mix well. Gradually incorporate the powdered sugar, half a cup at a time, to avoid mess. If needed, add the remaining 2 tablespoons of milk to achieve the desired frosting consistency. Adjust the green food coloring as necessary to reach your preferred shade.
- Frost and Decorate: Once the cookie bars have cooled, spread the frosting evenly over the top. Immediately sprinkle with St. Patrick’s Day-themed sprinkles for a festive touch.
- Serve: Cut into 36 bars and serve.
Nutritional Information (per serving):
- Calories: 401
- Carbohydrates: 61g
- Protein: 4g
- Fat: 16g
- Saturated Fat: 10g
- Cholesterol: 77mg
- Sodium: 233mg
- Potassium: 36mg
- Fiber: 1g
- Sugar: 41g
- Vitamin A: 527IU
- Calcium: 14mg
- Iron: 2mg
Note: Nutritional values are approximate and may vary based on ingredient brands and measurements.
These delightful St. Patrick’s Day Sugar Cookie Bars are perfect for adding a festive touch to your celebrations. Their soft, chewy texture combined with the rich frosting makes them a crowd-pleaser for both kids and adults alike. Enjoy this sweet treat as you celebrate the luck of the Irish!
Fun Variations to Try
1. Mint Chocolate Sugar Cookie Bars
- Add ½ teaspoon of peppermint extract to the frosting for a minty twist.
- Sprinkle with mini chocolate chips or drizzle with melted chocolate.
2. Rainbow Sprinkle Sugar Cookie Bars
- Use rainbow-colored sprinkles instead of green for a fun and colorful dessert.
- Drizzle with white chocolate for extra sweetness.
3. Lemon-Lime Sugar Cookie Bars
- Add lemon or lime zest to the frosting for a citrusy kick.
- Use a mix of yellow and green sprinkles for a fresh spring look.
4. Irish Cream Frosting
- Replace some of the milk in the frosting with Baileys Irish Cream for a rich, indulgent flavor.
- Top with gold sprinkles to add a touch of elegance.

Frequently Asked Questions (FAQs)
1. Can I Make These Bars in Advance?
Yes! These sugar cookie bars can be made 1-2 days in advance and stored in an airtight container at room temperature until ready to serve.
2. How Should I Store Leftovers?
Leftovers should be stored in an airtight container at room temperature for up to 4 days. If you prefer a firmer texture, you can store them in the refrigerator.
3. Can I Freeze These Sugar Cookie Bars?
Yes! The unfrosted bars can be frozen for up to 2 months. Wrap tightly in plastic wrap and store in a freezer-safe bag. When ready to serve, thaw and frost before cutting into squares.
4. Can I Make These Gluten-Free?
Absolutely! Use a 1:1 gluten-free flour substitute to make these bars gluten-free.
5. What Can I Use Instead of Almond Extract in the Frosting?
If you don’t like almond extract, you can use:
- Vanilla extract for a classic flavor
- Lemon extract for a citrusy twist
- Peppermint extract for a minty variation
6. Can I Use a Different Frosting?
Yes! While the classic buttercream frosting is delicious, you can also try:
- Cream cheese frosting for a tangy contrast.
- Whipped cream frosting for a lighter option.
- Chocolate ganache for a rich, indulgent topping.
Conclusion: The Ultimate St. Patrick’s Day Dessert
These St. Patrick’s Day Sugar Cookie Bars are the perfect blend of festive, fun, and delicious. Their soft, chewy texture, paired with a sweet green frosting and sprinkles, makes them an irresistible treat for any celebration.
Whether you’re baking for a party, a school event, or just indulging in a little holiday spirit, these bars are easy to make, full of flavor, and guaranteed to be a crowd favorite.
Try them this St. Patrick’s Day and enjoy a sweet, festive treat that captures the joy and magic of the holiday!
Print
Best St. Patrick’s Day Sugar Cookie Bars
- Total Time: 30 minutes
- Yield: 36 bars 1x
Description
These St. Patrick’s Day Sugar Cookie Bars are a fun, festive, and incredibly delicious way to celebrate the holiday! With a soft and buttery sugar cookie base, a smooth green frosting, and festive sprinkles, these bars are easy to make and perfect for parties, bake sales, or family gatherings. No rolling or cutting required—just bake, frost, and slice for a crowd-pleasing treat!
Ingredients
For the Cookie Bars:
- 1 cup unsalted butter, softened
- 2 cups granulated sugar
- 4 large eggs
- 2 teaspoons vanilla extract
- 1 teaspoon salt
- ½ teaspoon baking soda
- 5 cups all-purpose flour
For the Frosting:
- 5 cups powdered sugar
- 1 cup unsalted butter, softened
- ¼ to ½ teaspoon almond extract
- 6 tablespoons milk
- Green food coloring
- St. Patrick’s Day-themed sprinkles
Instructions
- Preheat Oven & Prepare Pan: Preheat oven to 375°F (190°C) and grease a 12×17-inch baking sheet.
- Mix the Dough: Cream together butter and sugar until light and fluffy. Beat in eggs and vanilla extract. In a separate bowl, whisk together flour, salt, and baking soda, then mix into wet ingredients until combined.
- Bake the Cookie Base: Spread dough evenly in the prepared baking sheet. Bake for 15 minutes or until edges are lightly golden. Let cool completely.
- Make the Frosting: Beat butter until smooth, then add powdered sugar, milk, almond extract, and green food coloring. Mix until creamy.
- Frost & Decorate: Spread frosting evenly over the cooled cookie base. Sprinkle with St. Patrick’s Day-themed sprinkles.
- Slice & Serve: Cut into bars and enjoy!
Notes
- Use gel food coloring for a richer green color without thinning the frosting.
- Store in an airtight container at room temperature for up to 4 days.
- Freeze unfrosted bars for up to 2 months and frost when ready to serve.
- Swap almond extract for vanilla or mint extract for a different flavor.
- Prep Time: 15 minutes
- Cook Time: 15 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American