Hot Chocolate Bombs

Featured in Sweet Treats and Baked Favorites.

Melt and shape chocolate into shells, fill them with cocoa mix and marshmallows, and enjoy when melted in a steaming mug of milk for a cozy drink.

Aisha
Updated on Sat, 22 Mar 2025 20:37:12 GMT
Close-up of chocolate spheres drizzled with chocolate, sprinkled with cocoa toppings, and mini marshmallows. Pin it
Close-up of chocolate spheres drizzled with chocolate, sprinkled with cocoa toppings, and mini marshmallows. | cookingflavor.com

Gotta tell you how these DIY hot chocolate bombs turned into my winter go-to gift. After my children flipped out over some pricey store ones last year, I thought 'I can definitely top these!' Fast forward through dozens of attempts and chocolate-smeared hands, I finally nailed it. These days my kitchen transforms into a chocolate workshop every holiday, and my friends start hinting they want some the minute temperatures drop.

Cracking the Code

Through plenty of botched tries at these handmade treats (including one batch that turned to goo before I could give them away!), I've figured out that the chocolate quality is everything. Don't even think about using those baking chips sitting in your cupboard - I tried and ended up with a total disaster. For this simple method to work perfectly, invest in quality chocolate containing actual cocoa butter. I always reach for Callebaut, but Ghirardelli does the job nicely if that's what's available.

Getting Ready

What You'll Need
Pick up some decent chocolate - around 12 ounces makes 6 bombs. Find those round molds (mine came from an online shop really cheap), and get fresh marshmallows - forget about using those stale ones from months ago. For hot cocoa powder, I prefer mixing my own using Dutch cocoa with a tiny bit of sea salt.
Workspace Prep
Make room on your counters - things get messy at first. Gather everything: thermometer, spatula, a brush for coating molds (I actually use a clean makeup brush - it's perfect!), plus some parchment paper to work on.
Watch Your Heat
Something nobody told me early on: your kitchen should be cool, roughly 70°F. I found this out when my first batch wouldn't harden during a hot chocolate making session. You might need to lower your thermostat!

The Step-by-Step

Getting Chocolate Ready
Cut your chocolate into tiny bits - I mean really small, like confetti. Larger pieces won't melt right (found that out myself). Carefully warm 2/3 of it to exactly 100°F - I just use short 20-second microwave bursts, mixing between each. After it melts, mix in what's left until it's completely smooth.
Mold Technique
Coat your molds with a thin chocolate layer. Chill for 5 minutes - no longer or you'll get moisture. Then add another coat, making the rims slightly thicker. This stops them from breaking later - I've been there!
Putting It Together
When shells have set, fill one half with cocoa mix and marshmallows. For joining them, warm a pan slightly and touch the empty half's edges to it for a quick second - this melts just enough for a perfect join!

Fixing Common Problems

Real talk - even with this straightforward approach, issues pop up. When your chocolate looks weird and streaky, it's probably temperature issues - aim for between 88-91°F. Shells won't come out? Put them in the freezer for exactly 3 minutes. Got fingerprints all over your finished bombs? Just brush lightly with something slightly warm. Remember, even the not-so-pretty ones taste fantastic!

A tray of decorative chocolate cocoa bombs topped with various designs and surrounded by small marshmallows and chocolate shavings. Pin it
A tray of decorative chocolate cocoa bombs topped with various designs and surrounded by small marshmallows and chocolate shavings. | cookingflavor.com

Personal Touches

After you've mastered the basics, play around a bit! I throw in peppermint pieces to the cocoa mix at Christmas, or a dash of cinnamon and cayenne for spicy Mexican versions. My kids go crazy for their favorite twist with colorful sprinkles inside - they've dubbed them 'unicorn bombs.' Try putting colored cocoa butter in molds first for cool swirly patterns.

Keeping and Giving

These handcrafted treats need proper storage. Put them somewhere cool and dry - I use the cabinet farthest from my stove. They'll stay good about three weeks if you can keep your hands off them! When giving as gifts, I stick each one in a clear cellophane baggie with a cute ribbon. Add a simple note saying 'Drop into hot milk, watch it burst open, stir and drink!' Fair warning: once you start giving these as presents, you'll be making them every single winter!

Frequently Asked Questions

→ Why isn’t my chocolate smooth?

It's all about the right heat. Stick to the ideal range of 88-91°F for a silky finish. Mess up the temperature, and it won't shine or set properly.

→ No mold on hand?

You can use cupcake liners instead. Just layer chocolate in them several times to build the walls.

→ What's with the gloves?

They prevent fingerprints on the shiny finish. Gloves keep the look polished and flawless.

→ Which milk works best?

Whole milk will make it super creamy, but 2% does the trick too. Heat it until it's just about to boil for a dramatic melt effect.

→ How should I store them?

Put them in an airtight box in a dry, cool spot. If tempered right, they'll last weeks without issues.

Hot Chocolate Bombs

Chocolate shells packed with cocoa and marshmallows that dissolve in steamy milk.

Prep Time
60 Minutes
Cook Time
10 Minutes
Total Time
70 Minutes
By: Aicha

Category: Desserts

Difficulty: Difficult

Cuisine: American

Yield: 6 Servings (6 bombs)

Dietary: Vegetarian, Gluten-Free

Ingredients

01 6 cups milk to drink with.
02 18-24 small marshmallows.
03 1/4 cup cocoa powder mix.
04 12 oz of semi-sweet chocolate.
05 Optional: sprinkles for decoration.

Instructions

Step 01

Warm up 8 oz of chocolate in a double boiler until it hits 100°F. After taking it off the heat, mix in the rest of the chocolate until it cools to 88-91°F.

Step 02

Use a brush to coat molds or cupcake liners with chocolate. Once hardened, add another layer. Let it set fully after the second coat.

Step 03

Fill half of the shells with the cocoa mix, some marshmallows, and a few sprinkles.

Step 04

Paint some melted chocolate on the edges and stick the shells together. If using liners, just cover them with more chocolate.

Step 05

If you want, drizzle some extra chocolate on top and toss on a few sprinkles. Use gloves to keep them looking neat.

Step 06

Drop one into really hot milk and mix it up as it melts.

Notes

  1. Keeping the right temp makes a big difference.
  2. You can use cupcake liners rather than molds.
  3. Gloves help avoid smudges.

Tools You'll Need

  • Cupcake liners or spherical molds.
  • A double boiler setup.
  • Cooking thermometer.
  • A brush for pastry work.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy.
  • Possible traces of soy.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 450
  • Total Fat: 24 g
  • Total Carbohydrate: 52 g
  • Protein: 8 g