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If you are a fan of the iconic seasonal mint milkshake, these Oreo Shamrock Shake Cookies are about to become your new favorite tradition. This recipe captures all the creamy, minty goodness of the classic shake and packs it into a soft, chewy cookie. Loaded with white chocolate chips and crushed Mint Oreos, these cookies are the perfect vibrant green addition to any St. Patrick’s Day celebration.

What makes these shamrock shake cookies stand out is the perfect balance of refreshing peppermint and rich chocolate. By using a touch of green food coloring and high-quality peppermint extract, you get a treat that is visually stunning and tastes exactly like the famous “Luck of the Irish.”
Table of Contents
Why You’ll Love These Cookies
- Bakery-Style Texture: Thick, soft centers with slightly crisp edges.
- Iconic Flavor: Tastes just like a Shamrock Shake in solid form.
- Double the Mint: Features both peppermint extract and Mint Oreo chunks for maximum flavor.
- Perfect for Parties: The vibrant green color makes them an instant hit at school or work gatherings.
Ingredients
- 1 cup (2 sticks) Unsalted Butter, softened
- ¾ cup Granulated Sugar
- ¾ cup Light Brown Sugar, packed
- 2 Large Eggs
- 1 tsp Vanilla Extract
- 1 tsp Peppermint Extract (adjust to taste)
- 3 cups All-purpose Flour
- 1 tsp Baking Soda
- ½ tsp Salt
- 1 cup White Chocolate Chips
- 1 cup Mint Oreos, coarsely chopped
- Green Gel Food Coloring (3-5 drops for desired hue)
Instructions
1. Cream the Butter and Sugars
Preheat your oven to 350°F (175°C). In a large bowl, beat the softened butter and both sugars together until light and fluffy (about 2–3 minutes).
2. Add the Liquids and Color
Mix in the eggs one at a time, followed by the vanilla and peppermint extracts. Add the green gel food coloring and mix until the color is uniform throughout the wet ingredients.
3. Mix in Dry Ingredients
In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet mixture, stirring until just combined.

4. Fold in the Mix-ins
Gently fold in the white chocolate chips and the chopped Mint Oreo pieces with a spatula. Avoid overmixing to keep the Oreo chunks intact.
5. Scoop and Bake
Drop rounded tablespoons of dough (about 2 tablespoons per cookie) onto a baking sheet lined with parchment paper. Bake for 10–12 minutes. The edges should be set, but the centers should still look slightly soft.

6. Cool and Set
Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack. This ensures they set perfectly without falling apart.
Expert Tips for Success
- Gel vs. Liquid Color: Use gel food coloring for a more vibrant green without affecting the dough’s consistency.
- Don’t Over-Mint: Peppermint extract is strong! Start with 1/2 teaspoon if you prefer a milder flavor and work your way up.
- The “Bakery” Look: Press a few extra white chocolate chips and Oreo chunks into the top of the dough balls right before baking for a picture-perfect finish.
- Chill the Dough: If your kitchen is warm, chill the dough for 30 minutes before baking to prevent the cookies from spreading too thin.
For the ultimate collection of festive, top-rated holiday bakes, don’t miss our master guide to THE BEST 20 ST PATRICK’S DAY DESSERTS & TREATS IDEAS!
Variations
- Dark Chocolate Version: Swap white chocolate chips for dark chocolate chips for a “Thin Mint” inspired cookie.
- Ice Cream Sandwiches: Sandwich a scoop of vanilla or mint chip ice cream between two cookies for an epic frozen treat.
- Shamrock Shake Frosting: Top the cooled cookies with a swirl of green mint buttercream and a maraschino cherry for the full “milkshake” effect.
- Andes Mint Twist: Add chopped Andes mints instead of Oreos for a different texture and flavor profile.
FAQ: Oreo Shamrock Shake Cookies
Q: Can I use regular Oreos instead of Mint? A: Yes. If you use regular Oreos, you may want to increase the peppermint extract by 1/4 teaspoon to ensure that classic “Shamrock Shake” flavor carries through.
Q: How do I store these cookies? A: Store in an airtight container at room temperature for up to 5 days. They stay soft longer if you place a slice of bread in the container with them!
Q: Can I freeze the dough? A: Yes. Roll into balls and freeze on a tray before transferring to a bag. Bake from frozen for an extra 1–2 minutes.
Q: My cookies spread too much—what happened? A: This usually means the butter was too soft (melted) or the oven wasn’t fully preheated. Try chilling the dough next time to help it hold its shape.

Oreo Shamrock Shake Cookies
Equipment
- Mixing bowls
- Electric mixer
- Baking Sheets
- Parchment paper
Ingredients
- 1 cup unsalted butter, softened
- 3/4 cup granulated sugar
- 3/4 cup light brown sugar, packed
- 2 large eggs
- 1 tsp vanilla extract
- 1 tsp peppermint extract
- 3 cups all-purpose flour
- 1 tsp baking soda
- 1/2 tsp salt
- 1 cup white chocolate chips
- 1 cup Mint Oreo cookies, coarsely chopped
- 3-5 drops green gel food coloring
Instructions
- Preheat oven to 350°F (175°C). In a large bowl, beat butter, granulated sugar, and brown sugar until light and fluffy, about 2–3 minutes.
- Mix in eggs one at a time, then add vanilla extract, peppermint extract, and green gel food coloring until evenly combined.
- In a separate bowl, whisk together flour, baking soda, and salt. Gradually mix into the wet ingredients until just combined.
- Gently fold in white chocolate chips and chopped Mint Oreos.
- Scoop 2-tablespoon portions onto parchment-lined baking sheets. Bake for 10–12 minutes until edges are set and centers are soft.
- Cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.