Igloo Cake Holiday Treat

Section: Indulgent Desserts for Sweet Endings

This winter dessert combines a tender vanilla cake with a dome-shaped structure resembling an igloo. Frosting tinted with blue gel food coloring creates a chilly, snowy appearance, while marshmallows are carefully placed to mimic the look of ice blocks. The entryway is crafted from halved cake donuts covered in frosting, adding a charming detail. Crushed blue rock candy glimmers like frozen crystals atop the confection, finished with a light dusting of confectioners’ sugar to evoke fresh snowfall. Despite its impressive look, it’s approachable for home bakers using store-bought mixes and frosting, and can be assembled in about an hour, making it an ideal centerpiece for holiday gatherings.

Luna chef wearing a white shirt.
Published By Luna
Updated as of Sat, 27 Dec 2025 08:12:17 GMT
A cake shaped like an igloo. Bookmark
A cake shaped like an igloo. | foodbymary.com

This igloo cake takes center stage at any holiday gathering by combining festive fun with surprisingly simple preparation. Instead of the usual gingerbread house, this cake lets you show off your creativity while keeping things easy with packaged mix and ready-made frosting. It only takes about an hour to make, so it’s perfect when you want something impressive without tying yourself to the oven all day.

I remember making this during a chilly winter weekend when the kids insisted on a snow-themed treat. It quickly became the star of the table with everyone asking how it was made.

Ingredients

  • Cooking spray: to ensure nothing sticks and your cake comes out clean
  • All-purpose flour: for dusting pans preventing any sticking issues
  • Vanilla cake mix: along with ingredients needed on the box for a reliable, fluffy base
  • Vanilla frosting: adds sweetness and acts as the glue for decorations
  • Blue gel food coloring: to give the frosting that icy, wintery feel. Use a gel variety for vivid color without thinning the frosting
  • One store-bought cake donut: halved to form the igloo’s entryway – choosing a donut with a smooth surface helps with decoration
  • Regular-sized marshmallows: to create the igloo’s distinctive snowy bricks. Fresh marshmallows work best for sticking well
  • Mini marshmallows: for detail work around the entryway to keep the look consistent
  • Crushed blue rock candy: mimics glittering ice crystals to add sparkle
  • Confectioners’ sugar: for dusting to imitate fresh snow

Step-by-Step Instructions

Sculpt the Base:
Arrange your oven racks on upper and lower thirds and preheat to 350 degrees. Grease an 8-inch round cake pan and an 8-inch ovenproof bowl with cooking spray. Lightly dust both with flour then tap out any excess. The bowl with a rounded bottom will shape your igloo dome.
Mix and Portion Batter:
Prepare the cake mix according to the package directions in a large bowl. Pour slightly more than half into the greased bowl. Pour the rest into the cake pan for a flat base. This layering forms the igloo’s shape.
Bake Separately:
Bake both in the oven, switching their positions halfway through for even cooking. The cake pan should take about 25 minutes or until a tester comes out clean. The bowl cake will need around 10 more minutes beyond that to bake through.
Cool and Level:
Once baked, invert both onto wire racks to cool fully. Use a serrated knife to level any domed parts for smooth stacking.
Color and Frost:
Mix blue gel food coloring into vanilla frosting until you get the icy blue shade you want. Frost the cake pan layer first, then place the dome from the bowl on top, flat side down. Cover the whole cake in frosting to create the igloo’s snowy surface.
Add the Entryway:
Take your donut halves and use frosting as glue to attach one half at the base of the cake as an entryway. Stack the other half in front and coat both with frosting.
Create Igloo Bricks:
Snip large marshmallows in half lengthwise with kitchen shears. Press the cut sides into the frosting starting at the bottom working up in close, even rows. This mimics igloo bricks beautifully and securely.
Detail the Entry:
Snip mini marshmallows the same way and press them into the frosting on the entryway for consistent texture.
Final Touches:
Sprinkle crushed blue rock candy around as icy crystals then dust confectioners’ sugar over the whole igloo for a fresh snow effect.
A slice of blue and white cake with marshmallows on top. Bookmark
A slice of blue and white cake with marshmallows on top. | foodbymary.com

My favorite part is definitely cutting the marshmallows just right to fit as igloo bricks. It’s a little tedious but totally worth how magical the igloo looks. This cake always brings back fun memories of building snow forts as a kid and serving my family something just as cozy and seasonal.

Storage Tips

Store any leftover cake in an airtight container in the refrigerator to keep it fresh for up to three days. The marshmallows will soften a bit but remain delicious. For longer storage freeze uncovered for about an hour until firm, then wrap tightly with plastic wrap and aluminum foil. Thaw overnight in the fridge before serving.

Ingredient Substitutions

If you can’t find vanilla cake mix swap for white or yellow cake mix for a similar flavor. Cream cheese frosting can replace vanilla for a richer taste but skip adding blue food coloring unless you want teal. You can use mini marshmallows alone if large ones aren’t available, just adjust coverage accordingly.

Serving Suggestions

Pair slices with hot cocoa or warm apple cider for a cozy winter dessert experience. This cake is perfect as a centerpiece but also works well cut into wedges for sharing. Adding some festive sprigs of rosemary or edible snowflake decorations nearby can up the holiday vibe.

Cultural Context

Igloos traditionally reference the snowy homes built by Inuit people as shelters in Arctic regions. This cake pays homage with its construction and snowy look but in a sweet, approachable way perfect for the holidays. It’s a modern twist on winter-themed baking that brings a playful edge to classic festive decorating.

Pro Tips

  • Plan your assembly so the cake is completely cool before frosting or the marshmallows won’t stick well
  • Use kitchen shears to cut marshmallows instead of a knife. It gives a cleaner edge for brick-like shapes
  • Don’t skip dusting the pans with flour after spraying. It makes releasing the dome from the bowl much easier and keeps the shape intact

Common Recipe Questions

→ How do I achieve the igloo shape?

Using an ovenproof rounded bowl to bake part of the cake creates the dome shape. Combining this with a flat round cake forms the igloo’s base and rounded top.

→ What is the purpose of blue gel food coloring in the frosting?

It gives the frosting a cool, icy blue tint to mimic frozen snow and enhance the wintry aesthetic of the dessert.

→ How are the marshmallows used on the cake?

Large marshmallows are snipped in half and pressed into the frosting to resemble ice blocks covering the igloo’s surface, while mini marshmallows decorate the entryway.

→ Can I substitute the donuts used for the entryway?

Yes, any similarly shaped or sized pastry can be used to create the entrance, but cake donuts provide the perfect texture and form.

→ What decorating tips create the snowy effect?

Lightly dusting confectioners’ sugar over the finished cake and adding crushed blue rock candy enhances the illusion of snow and icy crystals.

→ Is store-bought cake mix suitable for this dessert?

Store-bought cake mix simplifies preparation without sacrificing taste, allowing efficient assembly and baking.

Igloo Cake Holiday Dessert

A festive cake with marshmallow bricks and blue candy, perfect for winter celebrations.

Prep Time
20 minutes
Cooking Time
35 minutes
Complete Time
55 minutes
Published By: Luna

Recipe Category: Desserts

Skill Level: Beginner-Friendly

Cuisine Type: American

Total Portions: 12 Serves How Many (One 8-inch igloo-shaped cake)

Dietary Preferences: Vegetarian-Friendly

Required Ingredients

→ Cake Base

01 1 box (432 g) vanilla cake mix plus required ingredients per package instructions
02 Cooking spray
03 All-purpose flour for dusting

→ Frosting and Coloring

04 1 container (454 g) vanilla frosting
05 3 drops blue gel food coloring, adjust as needed

→ Structure and Decoration

06 1 store-bought cake donut, halved
07 1 bag (284 g) regular-sized marshmallows
08 1 cup (approx. 100 g) mini marshmallows
09 Crushed blue rock candy for decoration
10 Confectioners' sugar for dusting

Step-by-Step Instructions

Step 01

Arrange oven racks in upper and lower thirds and preheat to 175°C. Grease an 8-inch round cake pan and an 8-inch ovenproof bowl with cooking spray. Dust both with flour, tapping out excess.

Step 02

In a large bowl, prepare cake batter according to package directions. Pour a little more than half the batter into the prepared bowl and the remainder into the prepared pan.

Step 03

Bake both pan and bowl, rotating top to bottom halfway through, until cake in pan is cooked and a tester comes out clean, about 25 minutes.

Step 04

Continue baking the cake in the bowl until a tester inserted in the center comes out clean, approximately 10 additional minutes. Invert both cakes onto a wire rack and let cool.

Step 05

Tint frosting with blue gel food coloring until desired shade is reached. Level domed sides of cakes with a serrated knife. Spread frosting over the top and sides of the cake baked in the pan. Place cake baked in the bowl on top, flat side down, and frost entire structure ensuring full coverage.

Step 06

Using frosting as adhesive, attach one donut half to the bottom edge of the cake. Cover with frosting, then attach the second donut half to extend the entryway, covering it with frosting as well.

Step 07

Cut large marshmallows in half lengthwise using kitchen shears. Starting at the cake base, press cut sides into frosting in neat rows, packing closely until reaching the top.

Step 08

Snip mini marshmallows in half lengthwise and press them into the frosting on the exterior of the entryway.

Step 09

Decorate with crushed blue rock candy as desired. Lightly dust confectioners' sugar over the top to simulate snow.

Handy Cooking Tips

  1. Use kitchen shears for precise marshmallow cutting to ensure even application and clean edges.
  2. Adjust blue gel food coloring in small increments to reach optimal color without altering frosting texture.

Necessary Kitchen Tools

  • 8-inch round cake pan
  • 8-inch ovenproof bowl with rounded bottom
  • Wire cooling rack
  • Serrated knife
  • Kitchen shears

Allergy Details

Always check ingredient packaging for potential allergens and consult a healthcare professional when in doubt.
  • Contains gluten, dairy, and egg allergen due to cake mix and frosting