Spooky Slime Cookies

Inside: Bright green slime cookies that are perfect for Halloween or anytime for your favorite slime fanatics!

A slime recipe you’re supposed to eat!

A slime recipe you're supposed to eat! These bright green monster slime cookies are a spooky Halloween party snack or anytime treat for slime fans.

Spooky Green Slime Cookies

We love slime!! While we make lots of taste-safe slime recipes to play with, you definitely wouldn’t want to eat the whole batch.

That’s why I’m super excited about these bright green slime cookies!

Because you CAN eat them (and they taste delicious!)

These spooky slime cookies are the perfect Halloween party snack for kids OR anytime treat for your little slime fans.

Our bright green Slime Meringues would even be perfect for a slime-themed birthday party with slime gift baskets and slime making activities and decorations!

Related: Check out our Slime Cupcakes made with Jello too! We also used this meringueย technique to make snowman meringues for the holidays!

A slime recipe you're supposed to eat! These bright green monster slime cookies are a spooky Halloween party snack or anytime treat for slime fans.

I’ve included affiliate links for your convenience in re-creating this recipe; disclosure policy here.

Monster Slime Cookies Ingredients

(makes about 2 dozen cookies)

Kitchen supplies used to make Slime Meringues

How to Make Halloween Slime Cookies

Keep reading for photo step-by-step instructions and prep tips!

Recipe demo video and free printable copy of our Slime Cookies recipe is available at the bottom of the post.

Preheat oven to 225ยฐF.

Meanwhile, in a standing mixer, combine the egg whites and cream of tartar. Mix until frothy.

Continue to mix on medium-low speed, adding sugar slowly, alternating between the two types of sugar, 1 Tablespoon at a time. Your final Tablespoon should end up being powdered sugar.

Continue to mix until stiff peaks form.

A slime recipe you're supposed to eat! These bright green monster slime cookies are a spooky Halloween party snack or anytime treat for slime fans.

Add food coloring slowly, 1-2 drops at a time, until you achieve your desired shade. It’s easy to add more food coloring, but impossible to make them lighter if you add to much at once!

TIP: We used a piping bag to make our slime meringues, but in a pinch you could use a ziplock bag with the corner cut off.

A slime recipe you're supposed to eat! These bright green monster slime cookies are a spooky Halloween party snack or anytime treat for slime fans.

Note: Don’t forget to save leftover meringue to use later to “glue” your edible eyes to the cookies!

Wait until slime cookies are cool before attaching edible eyeballs with the meringue you kept aside.

Grab a printable copy of this recipe below!

Love slime as much as we do??

Be sure to check out all of our master list of edible slime recipes here!*

A huge collection of edible slime recipes for kids -- made with safe, non-toxic ingredients found at home. How to make slime WITHOUT borax, starch or glue.

*Taste-safe sensory play activities not meant for consumption.

Grab a free printable copy of this Spooky Slime Cookies recipe here:

If you love this slime cookies recipe, rate it!

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5 from 3 votes

Spooky Slime Cookies (with VIDEO)

These spooky slime cookies are the perfect for slime themed birthday parties or Halloween! Click for video tutorial!
Prep Time10 minutes
Cook Time1 hour 25 minutes
Total Time1 hour 35 minutes
Course: Dessert, Snack
Cuisine: American
Keyword: cookies, gluten free, Halloween, slime
Servings: 24
Calories: 33kcal
Author: Stacey aka the Soccer Mom

Ingredients

Instructions

  • Preheat oven to 225ยฐF.
  • Meanwhile, in a standing mixer, combine the egg whites and cream of tartar. Mix until frothy.
  • Continue to mix on medium-low speed, adding sugar slowly, alternating between the two types of sugar, 1 Tablespoon at a time. Your final Tablespoon should end up being powdered sugar.
  • Continue to mix until stiff peaks form.
  • Add leaf green gel food color, 1-2 drops at a time, until you achieve your desired shade.
  • Scoop meringue into the piping bag and pipe dollops of the meringue on top of each other.
  • Keep leftover meringue to use later to "glue" your edible eyes to the cookies.
  • Bake for 1 hour and 25 minutes at 225ยฐF.
  • Once your slime monsters are done baking, remove from oven and allow to cool enough to handle. Use the remaining meringue you set aside earlier to attach edible eyes to the slime cookies.

Video

Notes

*Nutritional information does not contain edible eyeballs!
Note: Nutrition information is a rough estimate only; actual values will vary based on the exact ingredients used and amount of recipe prepared.

Nutrition

Calories: 33kcal | Carbohydrates: 8g | Sodium: 8mg | Potassium: 18mg | Sugar: 7g

Tip: if you don’t have green food coloring on hand, try making these ghost meringues from our friends at Sugar Spice & Glitter!

Be sure to pin our Slime Cookies on Pinterest:

SLIME Cookies are perfect for slime themed birthday parties or Halloween! Spooky fun!!

More of our favorite Halloween recipes for kids:

Easy Halloween kids dessert recipe - Peanut Butter & Candy Corn Marshmallow Treat Bars

Peanut Butter & Candy Corn Marshmallow Bars

These Creamsicle-flavored Orange Halloween Cupcakes are the perfect pumpkin alternative! A tantalizing combination of smooth vanilla and juicy orange fruit.

Creamsicle Mini Orange Halloween Cupcakes

These easy chocolate spiderweb Halloween cupcake toppersย will help you create a wow-worthy holiday dessert in record time!

Chocolate Spiderweb Halloween Cupcake Toppers

Stacey aka the Soccer Mom
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8 Comments

  1. Just curious do these need to be stored in the refrigerator? And how long do they keep? A couple of days? Thank you for the recipe, they are super cute.

    1. Hi Rachel – You can add the vanilla after you mix the egg whites and cream of tartar. The recipe will taste just fine without it, but I think the vanilla adds a little more depth of flavor. I’ll update the recipe to make it clearer – thanks!

  2. I have two questions:

    1) How long does the recipe bake? Inside the instructions it says it bakes for 1 hour and 25 minutes, but at the top of the instructions it says it only bakes 15 minutes.

    2) When is the right time to put on the eyes? Your instructions say after they’re done baking, but your video shows before they’re done baking.

    Thank you for your help!

    1. Hi Megan – you can add the eyeballs either before or after baking. The correct baking time is 1 hour and 25 minutes. I must have left off the “1” when I typed up the recipe card, but I fixed it. Thanks for letting me know!

    1. Hi Jessica – they won’t be completely “stiff” to the touch, but should hold their shape at least enough to form your cookies on a sheet. Without seeing exactly what you did it’s hard for me to troubleshoot from afar, but I’m happy to try!

5 from 3 votes (3 ratings without comment)

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