A Goofy, Gooey, and Green Brownie Perfect for Disney Halloween Fun

These gooey green-swirled brownies are straight out of a Goofy moment. The slime swirl looks like something he might spill while helping Mickey in the haunted house, only to laugh it off with his classic “gawrsh!” Perfect for serving during a Mickey’s Monster Musical watch party or adding some Disney magic to a Halloween dessert table.

Tips for Success

• Bright slime: Gel food coloring works best for bold neon color without thinning the marshmallow creme.
• Clean swirl: Drag the knife gently just enough to marble—don’t overmix, or you’ll lose the slime effect.
• Extra gooey: Warm the brownies slightly before serving so the marshmallow stays soft and stretchy.
• Party-upgrade: Cut into squares and add candy eyeballs for an even spookier effect.

Fun Facts

• Goofy’s full name is actually Goofy Goof, and in some cartoons he’s even referred to as “George G. Geef.”
• His signature laugh—“ah-hyuck!”—was originally created by voice actor Pinto Colvig in the 1930s.
• Goofy first appeared in 1932 in the cartoon Mickey’s Revue, where he was just an audience member.
• Unlike Mickey and Donald, Goofy has a son: Max Goof, who stars with him in A Goofy Movie and Goof Troop.
• In Mickey’s Monster Musical, Goofy’s clumsy but good-hearted nature provides most of the comic relief, just like in nearly every other adventure.
• Disney has said that Goofy is meant to embody the idea that “it’s okay to be different and silly”, which is why kids and adults connect with him so much.

Before You Bake

Can I use any brand of brownie mix?
Yes, any standard boxed brownie mix works great. For the richest flavor, choose one labeled “fudgy” or “extra chocolatey.” Just be sure to follow the box directions for oil, eggs, and water amounts.

How do I get the green swirl to stay visible after baking?
Keep your swirling gentle- just a few figure-eight motions with a knife. Overmixing will cause the color to blend into the batter instead of standing out.

Can I make these ahead of time?
Absolutely! These brownies stay soft and gooey for up to three days when stored in an airtight container. If you’re serving them for a party, bake the night before and slice right before serving for the cleanest squares.

Goofy-Inspired Gooey Slime Brownies

Print Recipe

Pin Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

• Author: Taryn Camp

Ingredients

Scale 1x2x3x

• 1 box of brownie mix (plus ingredients listed on the box: oil, eggs, water)
• 1/4 cup mini chocolate chips
• 1 cup marshmallow creme (Fluff works best)
• 2–3 drops neon green gel food coloring
• Halloween sprinkles

Instructions

1. Preheat your oven according to the brownie mix directions and line a 9×13-inch pan with parchment paper and spray with baking spray.
2. Prepare the brownie batter as directed on the box. Stir in the mini chocolate chips. Pour the batter into the prepared pan.
3. In a small bowl, stir together the marshmallow creme and green food coloring until you get a bright slime color.
4. Dollop spoonfuls of the slime mixture over the brownie batter. Use a butter knife to gently swirl it through, creating gooey streaks of green.
5. Bake according to the box directions (usually 25–30 minutes), until the brownies are set but still fudgy.
6. Remove the brownies from the oven and immediately add sprinkles on top so they stick to the warm brownies.
7. Let cool completely before slicing into squares — the slime will stay soft and gooey inside.

FAQ

Can I use homemade brownie batter instead of a mix?
Yes! Use your favorite recipe, as long as it fits a 9×13-inch pan. The slime swirl works the same way.

Can I replace marshmallow creme with melted marshmallows?
You can, but marshmallow creme gives a smoother, shinier swirl that holds up better after baking.

What kind of food coloring should I use?
Gel food coloring is best- it gives a bright, neon color without thinning out the marshmallow creme.

How do I make the brownies extra fudgy?
Slightly underbake them and let them cool completely before slicing. For an even richer flavor, stir in a handful of extra chocolate chips.

Can I freeze these brownies?
Yes! Freeze cooled brownies in layers separated by parchment paper for up to one month. Thaw at room temperature before serving—the gooey swirl will stay perfectly soft.

Sprinkle of Fun

Turn dessert time into a “Goofy Slime Lab.” Set out sprinkles, candy eyes, and green icing so everyone can decorate their brownie square to look like a silly experiment gone wrong. While you snack, play Mickey’s Monster Musical and have a little Halloween fun.