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10 December Birthday Cake Ideas

Don’t let a December birthday get swallowed by Christmas or Hanukkah or New Year’s with these December birthday cake ideas!

#1 Make a traditional birthday cake

Of course, you can ignore the December holidays completely and make a standard birthday cake. Piped swirls and cheerful sprinkles are fun but they're not unique to December birthday cakes. You’re not reading this for an obvious idea like that!

birthday cake ideas

If you want to incorporate elements of December in a birthday cake, you’ll prefer the next ideas.

#2 Zodiac vintage cake for a December birthday cake

Zodiac cakes are really trendy, with catchy messages combined with the vintage or lambeth style of excessive piping. Use different colours and different piping tips to create elaborate designs.

piped vintage or lambeth cake design

Popular piping tips for vintage cakes are star tips like a 4B or #32. For more details, check out my tutorial on 10 secrets for vintage cakes.

piping Sagittarius onto a vintage cake for a december birthday cake

Check the zodiac calendar because December birthdays could be either Sagittarius or Capricorn!

sagittarius baby december birthday cake

#3 Add a funny December birthday cake message

Turn the birthday date into a joke with this funny message! Use a small round piping tip to pipe thin lines for the letters.

funny december birthday cake message

Here are some tips for piping messages. Use a toothpick to scrape off any lines you don’t like or an offset spatula for several letters. This works best if you chill the cake before piping the message so the frosting underneath is firm. To fit a word into a gap or space, start with the middle letter and work your way out. And leave piping borders until the end so you don’t knock them as you pipe!

#4 Combine Christmas and a birthday on a cake

Blend Christmas with birthday vibes with this fun, colorful design. Pipe zig zags with a petal tip like a #104 or #125. Hold the wide part of the tip against the cake with the pointed side facing outwards, wiggling back and forth. Make the lines shorter and shorter as you go up, to make Christmas trees.

how to pipe christmas trees onto a cake with a petal piping tip

If you’re using several colours it’s quickest to pipe all of the trees of one colour first. Then switch the piping tip to another piping bag with the next colour to pipe all of those trees. Add sprinkles to make it even more celebratory, attaching them now while the buttercream trees are still soft and sticky.

attach sprinkles to buttercream before it sets

#5 Make a tray bake calendar cake

For a low effort cake that still delivers all of the flavour, bake your cake in an oven-proof dish . After it cools, decorate it right there in the dish! You can pipe the frosting on or spread it and smooth it.

how to frost a tray bake cake in a dish

Make a calendar by piping the days of the month and circling the birthday date. You can add letters for the days of the week at the top, if you like.

how to make a calendar cake
calendar cake for december birthday cake

Good news: this tray bake cake will be just as effortless to serve as it was to make!

tray bake cake december birthday cake idea

#6 Make a winter themed cake

Focus on winter with a cake decorated with snowflakes. I think the most striking was to do this is with buttercream carving. Cover a cake with a crumb coat and then another layer of frosting, which will be the colour of the snowflakes. Let it chill and set in the fridge for at least an hour and then add another colour on top. Or several colours, like with this watercolor style:

how to frost a cake for buttercream carving

I teach watercolour frosting in my free online course on 10 Frosting Techniques. Chill this frosting for another hour in the fridge. Then carve the buttercream using a petal piping tip or a special tool. Clay modeling tools are ideal and you can buy them on Amazon.

how to carve buttercream with a clay modeling tool
how to carve buttercream with a petal piping tip

Dip the metal into warm water before carving for the neatest results. Dry it off before using it because water on the cake can make the colours run.

carved buttercream snowflake cake december birthday cake idea

#7 Use seasonal ingredients for a December birthday cake

Use seasonal ingredients in your cake, for example Eggnog. This eggnog cake has decadent eggnog filling and frosting that tastes even better than the drink!

eggnog cake using seasonal ingredients for december birthday cake ideas

Peppermint is another great seasonal flavour for cakes. I like to crush and add them to cream cheese buttercream for a delicious filling between cake layers.

#8 Make a seasonal figure or character cake

Make a December figure cake, like a Gingerbread man or snowman or reindeer. I used my Best Chocolate Buttercream to frost this cake to turn into a reindeer. For ears, frost two halves of an Oreo cookie with a toothpick stuck in the middle of each half.

how to make reindeer ears with oreos and buttercream

The antlers are made out of melted chocolate, piped through a ziplock bag with a hole cut off the corner. Use a wooden skewer so that after they set you can poke them into the cake.

chocolate reindeer antlers on december birthday cake

The face is easy with shapes cut out of parchment or wax paper to make stencils. Spread frosting over them and then peel them off to make neat shapes. I used a petal piping to carve out a smile.

using homemade stencils to make a reindeer face on a cake

Pipe white details onto the eyes with plain white buttercream. Pipe more chocolate buttercream for fur on top of the cake, between the antlers and ears. To make this more of a birthday cake you could add a party hat!

chocolate reindeer cake with oreo ears and chocolate antlers

#9 Make a Christmas themed cake as a December birthday cake

Embrace the season with a Christmas themed cake like this gingerbread house cake. Admittedly, it has nothing to do with birthdays but I’m sure your time and effort will be appreciated! If the person loves cake then I’m sure they won’t mind what shape it is.

pink gingerbread house cake

#10 Make a party themed cake

For a New Year's Eve birthday, make this fun party llama birthday cake!

party llama new years eve december birthday cake idea

Learn how to make this design and hundreds more on my online cake school and get access too ALL of my courses with my All You Can Cake membership. Not sure? Start your free 7 day trial!

Tell me in the comments which December birthday cake ideas are your favourite! And save these ideas to Pinterest with the pins below!

Ideas for a December birthday cake
December birthday cake ideas from British Girl Bakes

You can also watch a video of these 10 December birthday cake ideas:

https://youtu.be/PH6u_0rwJFs
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