
These vibrant blue treats hit the sweet spot with a mix of white chocolate chunks, broken Chips Ahoy, and crushed Oreos. Each mouthful delivers a soft, chewy base with unexpected crunchy bits that make these monster bites totally addictive.
I whipped these up with my sister's kids recently and couldn't stop laughing at their wide eyes when the dough turned blue. We had such a blast with flour everywhere and tiny fingers sneaking tastes of dough - it's now our favorite family memory.
Key Cookie Ingredients
- All-purpose flour: Forms the backbone for our chewy cookie base - grab unbleached if you can for better results
- Cornstarch: The hidden trick for cookies that practically dissolve when eaten - this one's non-negotiable
- Butter at room temp: The foundation for ultimate creaminess - make sure it sits out about 2 hours beforehand
- Brown sugar: Adds moisture and hints of caramel flavor - either light or dark works great
- Gel food coloring combo: What gets you that awesome monster blue without making the dough too runny

Baking Cookie Wonders
- First Moves
- Blend your dry stuff together thoroughly so the cornstarch and baking soda spread evenly. This sets up the groundwork for truly amazing cookies.
- Getting The Color
- Beat butter and sugars until they're super fluffy and light. Don't rush this part as it's crucial for getting that perfect cookie feel.
- Making The Dough
- Slowly add in your dry mix while dropping in the blue coloring. You'll watch ordinary dough turn into something magically blue.
- Shaping Your Treats
- Roll your dough into balls and push in extra goodies. This step gives your cookies that signature monster look everyone loves.
- Oven Magic
- Turn your blue dough balls into perfectly baked goodies, keeping a close eye for that perfect moment to take them out.
Everyone at my house goes crazy for the white chocolate bits in these cookies. They melt just enough when the cookie's warm, making little pools of sweet creaminess that nobody can resist.
Tasty Companions
Enjoy these bright blue treats with a big glass of cold milk for that timeless combo. When you're feeling fancy, try them with a scoop of real vanilla ice cream for a next-level dessert.
Fun Variations
Switch things up by using golden Oreos or throwing in some shredded coconut. If you're into nuts, a handful of chopped macadamias adds amazing crunch.
Storage Smarts
Keep your cookies in a sealed container at room temp and they'll stay good for about five days. Put some parchment between layers so they don't stick together.

Clever Baking Tricks
- Make sure everything's at room temperature before you start mixing
- Go easy on the mixing after adding flour so your cookies stay soft
- Save some mix-ins to stick on top before baking for that bakery-shop look
I've made these cookies part of my monthly baking routine now. There's something truly wonderful about watching plain old ingredients change into these bright, tasty treats that always bring smiles all around.
Frequently Asked Questions
- → Why use multiple food colors?
- Blending royal blue, electric blue, and violet gives that perfect shade of Cookie Monster blue that stays vibrant after baking.
- → Can these cookies be made smaller?
- Of course! Just scoop smaller portions and bake 2-3 minutes less. Keep an eye on them.
- → What does cornstarch do here?
- It keeps the cookies soft inside and super chewy.
- → Is the dough freezable?
- Yep! Roll dough balls, add toppings, freeze them, and bake straight from frozen. Add 1-2 extra minutes in the oven.
- → How do I store these cookies?
- Use an airtight container at room temperature for up to 5 days. They'll stay tasty and soft.