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Witches Brew is the glowing green slow cooker hot chocolate that turns any Halloween night into a spooky little party, and the first time I set the crock pot out my girls Maddie and Lizzie hovered around it like tiny goblins waiting for their mugs on a chilly October evening. If you love a cozy cup with a boozy grown up option, our Kahlua white hot chocolate is the perfect nightcap version.
This creamy white hot chocolate simmers away in the slow cooker until it is silky smooth, then a little food coloring turns it into a bubbling cauldron of witchy green.
Witches Brew Quick Look
- 🕒 Prep Time: 5 minutes
- 🌡️ Cook Time: 3 hours
- ⏳ Total Time: 3 hours 5 minutes
- 🍽️ Serving: 12 servings
- ⚡ Calories: 623kcal
- 🌶️ Flavor Profile: Rich, creamy white hot chocolate with a spooky glowing green twist
- ✋ Difficulty: Easy, about as hands off as our green party punch
Quick Answer
Whisk half of the heavy cream with the white chocolate powder in a slow cooker, then stir in the remaining cream, whole milk, sweetened condensed milk, chopped white chocolate, and vanilla. Cover and cook on low for 2 to 3 hours, stirring every 20 minutes, until the white chocolate is fully melted and the mixture is smooth. Stir in green and yellow food coloring until you reach a bright witchy green, then ladle into mugs and top with whipped cream, marshmallows, and sprinkles. Keep it on the warm setting for up to 3 hours for serving.
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Why This Recipe Works
Click to see the technique science
- The slow cooker does all the work. No standing over a hot stove whisking, the crock pot melts the white chocolate low and slow so you can decorate and greet trick or treaters while it cooks.
- Real white chocolate, two ways. White chocolate powder plus a chopped baking bar gives you deep, creamy white chocolate flavor instead of a watery, one note cup.
- Sweetened condensed milk makes it luscious. That can of condensed milk is the secret to a thick, velvety texture that coats the mug like a proper dessert drink.
- The green is pure Halloween theater. A little green with a touch of yellow food coloring turns an ordinary white hot chocolate into a glowing cauldron kids go wild for.
- It holds on warm for the whole party. Set the slow cooker to warm and it stays pourable for hours, so guests can help themselves all night long.
- Totally customizable toppings. Whipped cream, marshmallows, candy eyes, sprinkles, or a plastic spider, everyone builds their own spooky mug.
Why You’ll Love This Recipe
- It is a fun, hands off slow cooker drink that makes your whole house smell like a white chocolate dream.
- That glowing green color is an instant showstopper on any Halloween party table.
- Kids and grown ups both go nuts for it, and it pairs perfectly with a spread of dirt cupcakes and other spooky treats.
- It stays warm and pourable for hours, just set out the toppings like you would for our green party punch and let everyone serve themselves.
Key Ingredients
Here is everything you need to brew up this spooky green hot chocolate.
- White chocolate powder: The creamy white chocolate base. We use Ghirardelli sweet ground white chocolate for a rich, smooth cup.
- White chocolate baking bar: Finely chopped so it melts down easily and adds real, deep white chocolate flavor on top of the powder.
- Heavy cream and whole milk: Together they give this hot chocolate its rich, luxurious body without being too heavy to sip.
- Sweetened condensed milk: The secret to a thick, velvety, dessert worthy texture that sets this apart from a plain cup of cocoa.
- Green and yellow food coloring: A few drops turn the white hot chocolate into a glowing witchy green, the same trick that makes our graveyard dirt cups so spooky and fun.
See recipe card for exact quantities.
Variations and Substitutions
This Witches Brew is easy to make your own. Here are our favorite twists.
- Make it boozy for the grown ups by stirring a splash of white chocolate liqueur or vanilla vodka into each mug, like our Kahlua white hot chocolate.
- Swap the green for purple or orange food coloring to match your Halloween theme.
- Add a handful of white chocolate chips to the slow cooker for even more melty white chocolate flavor.
- Stir in a teaspoon of peppermint extract for a spooky mint white hot chocolate.
- Serve it alongside a plate of chocolate covered peanut butter pretzels for the ultimate Halloween treat table.
- Top with a drizzle of green candy melts around the rim of each glass for extra witchy flair.
How to Make Witches Brew
- Add half of the heavy cream to the slow cooker. Whisk in the white chocolate powder until it is completely combined and smooth.
- Add the remaining heavy cream, whole milk, sweetened condensed milk, chopped white chocolate, and vanilla to the slow cooker, then stir to combine.
- Cover and cook on low for 2 to 3 hours, whisking every 20 minutes or so, until the white chocolate is fully melted and the hot chocolate is silky smooth. If it gets too thick as it sits, stir in a little more milk to loosen it.
- Stir in the green food coloring a little at a time, adding a touch of yellow, until you reach your perfect glowing witchy green.
- Ladle the Witches Brew into mugs and pile on your favorite toppings such as whipped cream, marshmallows, sprinkles, candy eyes, or a plastic spider. Keep the slow cooker on warm for up to 3 hours for serving.
Recipe Tips & Tricks
- Chop the white chocolate bar finely so it melts quickly and evenly without any stubborn lumps.
- Whisk every 20 minutes while it cooks to keep the chocolate from settling and scorching on the bottom of the crock.
- Add the food coloring slowly, a drop or two at a time, because it is much easier to deepen the green than to lighten it back up.
- Keep it on the warm setting once it is ready so it stays pourable all party long without cooking down too thick.
- Stir in a splash of warm milk if it thickens up as it sits, the same easy fix we use for a cozy batch of white hot chocolate.
- Set up a topping bar with whipped cream, marshmallows, and candy so kids can build their own spooky mugs.
Serving Ideas and Suggestions
Ladle this Witches Brew into clear glass mugs so that glowing green really shows off, then load up a topping bar with whipped cream, mini marshmallows, Halloween sprinkles, and candy eyes. It is the cozy centerpiece your spooky night has been missing, right next to a tray of dirt cupcakes with gummy worms.
Build out a full Halloween dessert table with our graveyard dirt cups, no bake dirt cake, and a batch of spooky candied grapes for the little ones to grab.
Throwing a bigger bash? Set this Witches Brew out next to savory bites like our jalapeno popper mummies and mummy dogs so there is something for every trick or treater, and check our party food ideas for even more crowd pleasers.
Witches Brew FAQs
Yes, Witches Brew is easy to make ahead. Cook it fully in the slow cooker, then switch it to the warm setting to hold it for serving, or refrigerate it once cooled and gently reheat in the slow cooker or on the stove. Whisk in a splash of warm milk when reheating to bring it back to a smooth, pourable texture.
This white hot chocolate naturally thickens as it sits because of the condensed milk and melted white chocolate. If it gets too thick, simply whisk in a little warm whole milk, a few tablespoons at a time, until it reaches the consistency you like. Keeping it on the warm setting instead of low also helps it stay pourable.
Absolutely. To make an adult version of Witches Brew, stir 1 to 2 ounces of white chocolate liqueur, vanilla vodka, or spiced rum into each individual mug rather than the whole pot, so you can serve both kid friendly and spiked cups from the same batch. Our Kahlua white hot chocolate is another great boozy option.
Witches Brew is all about spooky toppings. Try whipped cream, mini marshmallows, Halloween sprinkles, candy eyes, green or black sanding sugar around the rim, crushed cookies, or a plastic spider ring for a creepy finishing touch. Setting up a topping bar lets everyone customize their own mug.
The food coloring is what gives Witches Brew its signature glowing green look, but it is completely optional for flavor. Leave it out for a classic white hot chocolate, or swap in purple, orange, or black gel coloring to match your Halloween party theme. Gel food coloring gives the most vibrant color without thinning the drink.
You can keep Witches Brew on the warm setting of your slow cooker for up to 3 hours for serving, stirring occasionally so it stays smooth. Beyond that, transfer any leftovers to an airtight container and refrigerate for up to 3 days, then reheat gently with a splash of milk before serving.
Keeping the spooky treats coming? Our easy dirt cups and Oreo balls are next on the Halloween list.
Witches Brew
Ingredients
- 4 cups heavy cream
- 1/2 cup white chocolate powder
- 4 cups whole milk
- 14 ounces sweetened condensed milk
- 12 ounces white chocolate baking bar finely chopped
- 1 & 1/2 tablespoons vanilla extract
- Green Food Coloring
- Yellow Food Coloring
Instructions
- Add half of the heavy cream to the slow cooker. Whisk in the white chocolate powder until combined.4 cups heavy cream, 1/2 cup white chocolate powder
- Add the remaining cream, milk, sweetened condensed milk, chopped chocolate, and vanilla, stir to combine.4 cups whole milk, 14 ounces sweetened condensed milk, 12 ounces white chocolate baking bar, 1 & 1/2 tablespoons vanilla extract
- Place on low for 2- 3 hours, stirring every 20 minutes or so until the chocolate is melted and fully combined. Keep on the warm setting for up to 3 hours for serving. If the hot chocolate gets too thick while it sits, you can stir in more milk to your desired thickness.
- Add the food colorings until you reach your desired shade.Green Food Coloring, Yellow Food Coloring
- Serve with your desired toppings such as marshmallows, whipped cream, sprinkles, or plastic spiders!
Notes
- Nutritional Information: Always check the nutrition info if you’re substituting ingredients.
- Fun Kid Serving Ideas: Use fancy glasses or add a sterilized rubber hand at the bottom of the cauldron for extra creepiness.
- Easy Ingredients: All main ingredients can be found in your local grocery store. However, white chocolate powder may be a little hard to find, I get mine on Amazon here.
- Be sure to stir every so often if you can to ensure even melting.
- Use gel food coloring for the most vibrant colors.
Nutrition
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