Green “Toxic” Mac ‘n’ Cheese Recipe for Halloween!
Home » COOK » Recipes » Holiday Recipes » Halloween Recipes »This “Toxic” Mac ‘n’ Cheese Recipe is a great Halloween dish for dinner or for a party buffet table. All it takes is some spooky-shaped pasta and green food coloring to turn regular macaroni and cheese into this “toxic” version for Halloween!

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“Toxic” Mac ‘n’ Cheese Recipe
I threw a Halloween Party at the weekend and wanted to share some of the food and drink recipes with you before Crafty October comes to an ends for another year.
I know I’m sharing this on All Hallow’s Eve, so it may be a bit late for your festivities this year, but there is always future Halloween parties to be had!

This macaroni cheese recipe has got to be the easiest one ever. You don’t need to worry about cooking up a cheese sauce first – you just mix together some evaporated milk, eggs, and cheese with some seasoning and pour it over cooked pasta. You then bake everything in the oven and ta-da – mac ‘n’ cheese!
To give it that “toxic” touch, I coloured the cheese mixture green with food colouring. I wasn’t sure if it would work, but it totally did and was a big hit at our Halloween party!
When using food colouring it is better to add a little to start with and add a little more if needed. You can always add more colour, but not take it away.



If you like, you can whizz the cheese mixture in a blender – but ours was packed away when I made this on Saturday afternoon, so I didn’t bother. You could also add some extra grated cheese to the top, but I wanted people to be able to see the spooky-shaped pasta we had bought!
The pasta was shaped into pumpkins, bats, and spiders, and was also coloured black and orange which added to the “toxic” twist. If you can’t find Halloween pasta shapes, regular macaroni will be just fine.


Prepping in advance
You can make this dish in advance – which makes it a great party dish. Make sure you cook and cool down the pasta first before adding the sauce as the hot pasta would start cooking the eggs in the sauce. Transfer to a baking dish, cover, and refrigerate until ready to cook – allow some extra cooking time so that you can ensure it is hot throughout.

Halloween comes but once a year, but it lasts the whole month on the Purple Pumpkin Blog with my annual series – Crafty October!
Back in 2012 when I first started this series, I shared a Halloween craft every day in October – which is where the name Crafty October came from. Over the years the series has evolved into more than crafts, with me sharing recipes, free printables, pumpkin carving templates, party ideas, and more! I do sometimes sneak in some Autumn themed stuff too!


Toxic Mac 'n' Cheese for Halloween!
Ingredients
- 500 g / 16 ounces Halloween pasta shapes cooked
- 500 ml / 2 cups evaporated milk
- 4 large eggs
- ½ tsp ground nutmeg
- salt and pepper
- green food colouring
- 500 g / 4 cups grated cheese I use a mix of Cheddar and Red Leicester
Instructions
- Preheat oven to 220C/425F/Gas 7
- In a bowl, whisk together the evaporated milk, eggs, nutmeg, and salt and pepper.
- Add a couple drops of food colouring and mix until you get a good green colour. Remember you can always add more colour, but not take it away!
- Add the grated cheese and mix together well.
- Add the pasta and stir. Pour into a ovenproof dish and cook for 15-20 minutes until hot throughout and the cheese is melted.
To Prep In Advance
- Cook and cool the pasta before adding to the sauce.
- Transfer to an ovenproof baking dish and cover.
- Refrigerate until ready to cook - add extra cooking time if required to ensure food is heated through thoroughly.
Nutritional information is always approximate and will depend on the quality of ingredients used and serving sizes. If you need exact calories and macros, please do your own calculations.

This post is part of my long-running Crafty October series on The Purple Pumpkin Blog. Since 2012, I’ve shared Halloween recipes, printables, and crafts every October. While I don’t officially run the series anymore, all my new Halloween posts are still part of this decades-long celebration of spooky fun! Browse past Crafty October years for even more inspiration: 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, and 2012.

