Introduction
Get ready to make the cookies that are taking over your feed! These Cookie Monster Cookies are a viral TikTok sensation, combining a soft, chewy blue sugar cookie base with a triple threat of chocolate and cookie bits for maximum texture and fun in every bite.
Prep & Cook Time
Prep Time: 15 minutes
Cook Time: 12 minutes
Total Time: 27 minutes
Servings: 12 large cookies
Ingredients
- ½ cup light brown sugar (packed)
- ¼ cup granulated sugar
- ½ cup unsalted butter (melted)
- 1 large egg (room temperature)
- 1½ tsp pure vanilla powder (use half this amount if you prefer less rich vanilla flavor)
- 1⅓ cup all purpose flour
- 2 tsp cornstarch
- ½ tsp baking soda
- ½ tsp salt
- blue food coloring (to preference)
- ½ cup white chocolate chips
- ½ cup semi-sweet chocolate chips
- ½ cup chopped Oreo cookies (or similar chocolate sandwich cookies)
- ½ cup chopped Mini Chips Ahoy cookies (or similar crispy chocolate chip cookies)
- 24 milk chocolate bar pieces (I used Hershey’s)
- candy eyes (optional)
Instructions
- Preheat your oven to 350°F (175°C). Line two large baking sheets with parchment paper.
- In a large bowl, whisk together the melted butter, packed light brown sugar, and granulated sugar until well combined.
- Add the room temperature egg and vanilla powder (use half this amount if you prefer less rich vanilla flavor) to the sugar mixture. Whisk vigorously for about 1 minute until the mixture is smooth and slightly thickened.
- Add blue food coloring. Start with a few drops and mix, adding more until you reach your desired vibrant “Cookie Monster” blue.
- In a separate bowl, whisk together the flour, cornstarch, baking soda, and salt.
- Add the dry ingredients to the wet ingredients. Use a spatula to fold the mixture together until just combined and no dry flour remains.
- Fold in the white chocolate chips, semi-sweet chocolate chips, chopped Oreo pieces, and chopped Mini Chips Ahoy cookies until evenly distributed.
- Scoop the dough into 12 large portions (about 3 tablespoons each) and roll into balls. Place 6 dough balls onto each prepared baking sheet, spaced well apart to allow for spreading.
- Gently press 2 milk chocolate bar pieces onto the top of each dough ball. If using, add a few candy eyes onto each cookie.
- Bake for 10-12 minutes, or until the edges are lightly golden and the centers look just set. The cookies will continue to cook on the tray.
- Let the cookies cool on the baking sheets for 10 minutes before transferring them to a wire rack to cool completely.
Variations
- Cookie Stuffed: Press a whole Mini Chips Ahoy cookie into the center of each dough ball before baking for an extra cookie-in-a-cookie surprise.
- Monster Muffin-Tops: Bake the cookies in a muffin-top pan for a perfectly round, bakery-style look with craggy edges.
- Ice Cream Sandwiches: Once completely cooled, sandwich a scoop of vanilla ice cream between two cookies for the ultimate treat.
- Color Swap: Use green, purple, or pink food coloring for different “monster” themed cookies.
Tips for Success
- Melted Butter is Key: Using melted butter, not softened, is crucial for the chewy texture and helps create those beautiful crinkles.
- Don’t Overmix: Once you add the dry ingredients, mix just until combined. Overmixing leads to tougher cookies.
- Chill if Needed: If your dough seems too soft or sticky after adding all the mix-ins, pop it in the fridge for 15-20 minutes to make scooping easier.
- Underbake Slightly: For the softest, chewiest results, take the cookies out when the centers still look a little underdone. They will set up as they cool.
Storage & Reheating
Store completely cooled cookies in an airtight container at room temperature for up to 4 days. To recapture the fresh-baked texture, reheat a cookie in the microwave for 10-15 seconds.
FAQ
Can I use softened butter instead of melted?
No, melted butter is essential for this recipe’s specific chewy texture and crinkly top. Softened butter will result in a cakier cookie.
Why is my dough not turning blue?
Some food colorings are more potent than others. Gel food coloring is highly recommended over liquid for achieving a vibrant color without altering the dough’s consistency.
Can I skip the cornstarch?
The cornstarch is a key ingredient for making the cookies extra soft and chewy. It’s not recommended to omit it.
My cookies spread too much. What happened?
This is likely due to overly warm dough or a warm baking sheet. Ensure your baking sheets are cool before placing new dough on them, and consider chilling the dough for 20 minutes before baking if your kitchen is very warm.
Can I use different chocolate or cookie mix-ins?
The recipe is designed for the listed mix-ins for the perfect balance. You can substitute with similar types (e.g., other chocolate bars, different sandwich cookies), but the final texture and flavor will change.
Are the candy eyes edible?
Yes, the candy eyes used for baking are typically made from sugar and are edible. Always check the packaging to be sure.

