Thick, creamy, and bright blue, this Cookie Monster milkshake is a fun treat with cookie-covered rims, whipped cream, and candy eyeballs. Perfect drink for Halloween!

I grew up watching Sesame Street and loved all the characters dearly, but Cookie Monster was always my favorite because of how much he loves cookies, well duh. His distinct blue color always caught my eye first on the screen, and I loved how enthusiastic he got about eating cookies even if he made a mess.
My kids don't enjoy Sesame Street the way I did back then, and I understand how different it is for our generations, but they still love the characters even if they don't watch it that much. So for Halloween this year, I created this recipe, a cookie monster milkshake, and I'm so excited to make them when they have their costumes and their treats ready. In a way, I get to relive my childhood and share it with my kids.
This milkshake has that thick, creamy texture with bright blue color that looks just like Cookie Monster. The chocolate-coated rim covered in cookies makes it look over-the-top and fun, while the whipped cream topping holds all the decorations in place. The candy eyeballs are what really sell it and make it look like the actual character instead of just a blue shake with cookies.
I'm planning to make these right before trick-or-treating starts so the kids can have them as a special treat before heading out. I need just 25 minutes total with decorating and chilling time, and I know they're going to lose it when they see those candy eyeballs staring back at them. Even though they haven't watched nearly as much Sesame Street as I did, they know who Cookie Monster is, and that's enough for me to feel like I'm passing down a little piece of my childhood.
Ingredients

Vanilla ice cream and whole milk make this milkshake thick and creamy. Whole milk works best because it keeps everything rich and smooth without being too thin. Blue food coloring gives it that bright Cookie Monster blue, and gel coloring works better than liquid because it doesn't water down the shake.
For decorating the rim, melted dark chocolate creates that sticky base so all the cookies actually stay on the glass. Chocolate chip cookies, mini Oreos, and regular Oreos get pressed into the chocolate for that over-the-top cookie explosion look. Whipped cream goes on top for that fluffy finish, and broken chocolate bar pieces add extra chocolate chunks. Edible candy eyeballs are what make it actually look like Cookie Monster instead of just a blue milkshake.
See the recipe card for exact quantities.
Step-by-step Instructions

This Cookie Monster milkshake is a fun and playful treat that’s perfect for parties or a special dessert at home. Creamy blue milkshake, chocolate-covered cookie rims, and whimsical candy eyeballs make it both eye-catching and delicious.
Melt the Chocolate
Begin by melting the dark chocolate until it is smooth and pourable. You can do this in a microwave-safe bowl in short 20–30 second bursts, stirring between each interval to prevent burning. The melted chocolate will be used to coat the rims of the glasses and help the cookie decorations stick securely.
Decorate the Glass Rims


Dip the rim of each milkshake glass into the melted chocolate, making sure the coating is even. While the chocolate is still soft, press mini Oreos, halved regular Oreos, and small cookie pieces around the edge of the rim. Once the rims are decorated, place the glasses in the refrigerator for at least 10 minutes so the chocolate sets and holds the decorations firmly in place.
Prepare the Milkshake Base


In a blender, combine the vanilla ice cream, milk, and several drops of blue food coloring. Blend the mixture until it is smooth, creamy, and evenly colored. Taste the milkshake and adjust the blue food coloring for a deeper shade, or add a few extra cookies to enhance the texture and flavor.
Adjust Consistency
Check the thickness of the milkshake and adjust as needed. Add more ice cream if you prefer a thicker, richer shake, or add a bit more milk if you want a lighter, more pourable texture. Blend briefly again to combine.
Pour the Milkshake

Carefully pour the blue milkshake into the prepared glasses. Fill the glasses near the top while taking care not to disturb the chocolate-coated rims and cookie decorations.
Add Whipped Cream
Top each milkshake with a generous swirl of whipped cream. The whipped cream adds a light, airy layer that contrasts with the thick milkshake and creates a base for further decorations.
Decorate the Milkshake

Place pieces of chocolate bars, extra cookies, and Oreos on top of the whipped cream. Position the edible candy eyeballs securely on the whipped cream, using a small dab of melted chocolate if needed. For a playful finishing touch, insert one or two cookies into the whipped cream as if Cookie Monster is actively enjoying them.
Serve Immediately

Serve the Cookie Monster milkshake right after assembling to enjoy the ice cream at its creamiest and the decorations at their freshest. The chocolate-coated rims, cookie toppings, and whipped cream will be most visually striking when served immediately.
Top Tips for Cookie Monster Milkshake
Prep rims ahead: Decorate the milkshake rims in advance and store them in the refrigerator. This saves time on serving day and keeps the decorations intact.
Adjust the color carefully: Use blue food coloring to get the signature Cookie Monster look. You can also use natural alternatives like spirulina powder or butterfly pea flower if you prefer a natural option.
Use melted chocolate for stability: For the cookie decorations to stick properly, coat the rims with melted chocolate instead of syrup. This creates a firm base that holds the cookies in place while serving.
Other Drinks to Try

If you like how fun and over-the-top the Cookie Monster milkshake is, there are other drinks that match that same bold, playful vibe. The blackberry mint mojito mocktail is refreshing with bright fruit flavors and mint that make it crisp and colorful. For chocolate lovers, the chocolate freakshake brings rich chocolate layers and toppings that look just as impressive.
The Grinch freakshake is another playful option with bright green layers and whimsical decorations that kids and adults both get excited about. These drinks all have that same fun, creative energy as the cookie monster milkshake, making them perfect for parties, celebrations, or when you just want to make something that feels special at home.

Cookie Monster Milkshake Recipe
Ingredients
- 500 g 4 cups vanilla ice cream
- 240 ml 1 cup milk (whole milk works best)
- Blue food coloring gel or liquid
- 4-6 chocolate chip cookies for rim decoration and garnish
- Mini Oreos + regular Oreos for rim decoration and topping
- 4 tablespoons melted dark chocolate for rim coating
- 1-2 chocolate bars broken into pieces (for garnish)
- Whipped cream for topping
- Edible candy eyeballs for decoration
Instructions
Step 1: Create the Decorated Rim
- Coat the rim of each milkshake glass by dipping into the melted chocolate.
- While chocolate remains wet, press mini Oreos, halved regular Oreos, and cookie pieces around the rim's edge.
- Refrigerate glasses for at least 10 minutes to allow chocolate to set and secure decorations.
Step 2: Create the Milkshake
- Combine vanilla ice cream, milk, and several drops of blue food coloring in a blender.
- Blend until mixture becomes smooth, creamy, and achieves Cookie Monster's signature blue shade.
- Sample and adjust: increase food coloring for richer color, or blend in additional cookies for enhanced texture and taste.
Step 3: Final Assembly
- Fill each decorated glass with the blue milkshake mixture.
- Crown with a generous swirl of whipped cream.
- Decorate with chocolate bar pieces, additional cookies, and Oreos.
- Position edible eyeballs on the whipped cream (secure with a small amount of melted chocolate to prevent sliding).
- Insert one or two cookies into the whipped cream "as if Cookie Monster is actively enjoying them."





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