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Gluten free microwave hot cross bun (single serve)

I love developing recipes and I only post the ones that I truly love. Some recipes, though, really stand out as absolute favourites. This gluten free microwave hot cross bun (with oven instructions too) is one of those recipes. It is a speedy, 10 minute, single serve delight that can be whipped up on a moment’s notice. Say goodbye to stale gluten free hot cross bun leftovers and hello to this instantaneous treat.

Gluten free microwave hot cross bun

This gluten free hot cross bun caters to SO MANY different dietary requirements. It’s gluten free and only uses wholegrain flours (white rice flour and buckwheat flour). The bun is xanthan gum free, yeast free, egg free and is nut free/soy free depending on the milk you use.

Based on my microwave cinnamon roll, the bun can be dairy free/vegan with the use of plant based dairy. You can play around with the additions and the dough is naturally low FODMAP. So, with the right mix ins, you have a gluten free, low FODMAP hot cross bun without yeast, nuts and xanthan gum. Phew!

An aerial macro image of a gluten free microwave hot cross bun that has been sliced in half and topped with melting butter. The slice sits on a steel platter in bright sunlight.

Gluten free hot cross bun recipes

If you came here hoping for a larger batch, fear not! I have lots of hot cross bun recipes.

An aerial image of a gluten free microwave hot cross bun that has been sliced in half and smeared with butter. The bun sits on a white speckled ceramic plate on a white marble table.

Recipe notes

This is a pretty straightforward recipe, but it does require a little intuition (as does all gluten free baking). Because we’re making a bun, the dough needs to be moist but able to hold it’s form in a bun shape.

How much milk you add depends on a wealth of factors, such as the brand, the country you live in, the humidity in your kitchen, etc. If your bun is too wet or dry the first time, adjust the milk content accordingly. I can only test recipes in the climate I’m based in, so you need to adjust your dough as necessary.

The only substitutions are in terms of the dairy and mix ins. You can use your preferred milk and butter – whether they are plant based or regular. In terms of mix ins, see what works for you! I suggest 1/2 – 1 tablespoon maximum of whatever you choose.

Keep in mind that Australian tablespoons are 20ml whereas many other countries (USA, UK, Canada and NZ) use 15ml tablespoons. I tried to find data on other countries measuring spoons but didn’t have much luck. Either way, this means that you need to use 4 teaspoons to equal 1 Australian tablespoon if you are from one of these countries.

An aerial image of a gluten free microwave hot cross bun topped with chocolate chips. The bun sits in a white speckled ceramic mug atop a dark steel backdrop

FODMAP notes

If you need this bun to be low FODMAP, there are a few quick things to consider. Most of the ingredients (butter included) are naturally low FODMAP. However, the milk and the mix ins are two things that require consideration.

I always suggest using a milk that works for you and that you have on hand. Lactose free milk is a good option for those who have issues with lactose but enjoy regular milk. Of course, if you don’t have issues with lactose and are not in the elimination phase, use whatever you like.

In terms of plant based milk options, rice milk, soy milk made from soy protein as opposed to soy beans and macadamia milk are low FODMAP. Oat milk has a low FODMAP threshold, but isn’t considered gluten free in Australia. Also consider any allergies (to nuts, for example) when choosing a plant based milk.

In terms of the mix ins, I recommend chopped dark chocolate or choc chips (or plant based alternatives) for lactose intolerance.

You can also use 1 tablespoon (13g) of raisins which is a low FODMAP serve. Note that raisins differ from sultanas in FODMAP content – only 7g of sultanas is deemed low FODMAP.

An aerial image of a gluten free microwave hot cross bun with a dark chocolate cross. The bun sits on a white marble table and a sunlit glass of water sits to the top of the image.

Recipe tips for your gluten free microwave hot cross bun

I recommend being generous with the spices. This is what makes a hot cross bun taste like a hot cross bun, to me. If you happen to have any orange zest lying around, that will add to the flavour, too.

Particularly in the case of the microwave mug cake, I recommend being slightly more conservative with the milk. Microwave mug cakes get nice and steamed, which means they are more moist than oven baked goods.

As such, I would recommend using 60ml (1/4 Australian cup) milk in the microwave version and 80ml (1/3 Australian cup) in the oven version. Of course, this might be slightly different based on where you live, so take these figures as guides.

I haven’t included instructions for making a cross, because I think it over complicates an easy recipe. As you can see, I did use a chocolate cross for the photos. Otherwise it becomes a bit difficult to see what the recipe is just by the imagery. I recommend piping an easy little melted chocolate cross if you’d like one.

An aerial image of a sliced gluten free hot cross bun topped with melting butter on a bright blue ceramic plate.

Can I make this gluten free microwave hot cross bun in the oven?

This is always my most commonly asked question on microwave recipes and the answer is yes! You can make this bun in the oven, if I may. To do so:

  1. Preheat the oven to 180C/356F.
  2. Make the dough as instructed, using a little extra liquid (I recommend 80ml as opposed to 60ml) and place it in an oven safe, lightly greased ramekin or mini pan. I recommend a small pan to hold the bun in it’s perky shape. Although I haven’t tested it, I daresay the bun would ‘melt’ in the oven if left to it’s own devices.
  3. Bake for 10-15 minutes until lightly puffed and slightly golden on top.
  4. Allow to cool for 5-10 minutes before removing from the ramekin. I like to slice mine in half and serve it with melted butter.
An aerial image of a gluten free microwave hot cross bun that has been sliced in half and smeared with butter. The bun sits on a white speckled ceramic plate on a white marble table in bright sunlight.

More easy gluten free desserts

An aerial image of a gluten free microwave hot cross bun with a dark chocolate cross. The bun sits on a white marble table and a sunlit glass of water sits to the top of the image.

Gluten free microwave hot cross bun (single serve)

Xanthan gum free, yeast free, egg free, vegan/dairy free option
*Cups and measures are in Australian cups and measures. Use gram and ml for international accuracy.
Oven baking instructions can be found in the body of the post.
5 from 2
Prep Time 10 minutes
Cook Time 1 minute
Course Breads, Breakfast, Dessert, Snack
Cuisine Food Intolerance Friendly
Servings 1 person


For the binder:

  • 3.5g (1 teaspoon) psyllium husk powder (not flakes, see notes)
  • 60-80ml (1/4 -1/3 cup)* milk of choice (see notes)
  • 25g butter of choice (regular or plant based)

For the dry ingredients:

  • 25g fine white rice flour
  • 10g light buckwheat flour
  • 20-25g light brown sugar
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon ground cinnamon
  • 1/4 – 1/2 teaspoon ground nutmeg (use to taste if grating it fresh)


To make the binder:

  • Microwave or heat the milk and butter until the butter is melted and the milk hot.
  • Whisk the mixture constantly and vigorously while you sprinkle over the psyllium husk powder. It will gel up straight away, hence the need to whisk with vigour. Big clumps of psyllium husk powder are not pleasant to eat and will not help bind your bun.
  • Once thoroughly combined, set aside to thicken for five minutes. The longer it sits, the easier your buns will be to shape, but 5 minutes is the minimum.
  • After the five minutes, your gel should look like a gel rather than a liquid. Depending on how much milk you've added it will either be soft jelly consistency or a firmer disk.

To make the hot cross bun:

  • Add all the dry ingredients for the bun (except the mix ins) to a small/medium mixing bowl and whisk to combine.
  • Add the binder and mix as far as you can, then get your hands in and squelch the dough between your fingers. This will help remove any clumps of psyllium husk and combine the dough.
  • Continue with this method until you have a moist, ropey ball of dough with no dry flour left in the bowl. It should hold form and not be too wet or moist. Add the mix ins and combine them into the dough as best you can.
  • Transfer the ball of dough, smooth side up, into a microwave safe 250ml+ capacity mug. Microwave for 1 minute or until the top is dry and cooked through. See the body of the post for instructions on cooking this in the oven.
  • Set aside for a minute or so. I like to turn my bun out onto a cooling rack then slice it in half and butter it while warm.


  • I recommend using 60ml milk for the microwave version and 80ml milk for the oven version. This depends on your flours, the humidity where you live, etc, so it might vary. Use enough to form a dough that is moist and smooth but holds it’s own form. 
  • Read the body of the post for tips, recipe notes and hydration notes.
  • Read the body of the post for instructions on baking this bun in the oven. 
Keyword gluten free hot cross bun, gluten free mug cake, gluten free vegan mug cake, Microwave hot cross bun, yeast free hot cross bun
Tried this recipe?Let us know how it was!


  1. 5 stars
    It deserves six stars! This is one recipe that everyone should have on hand and use (lots)! I made it with only buckwheat flour as rice makes me sick, and went traditional with candied peel and sultanas. I also did 4 mugs worth too. My buddies that don’t like buckwheat and gluten free went wild for them (told them after the fact). We all agreed that this recipe makes the squidgiest, yummiest hot cross buns ever, and you now have three new converts. Happy Easter, and keep up the good work!

  2. 5 stars
    I have just tried this recipe with both Natvia and Truvia brown sugar stevia, and it worked a treat. So, anyone having issues with sugar can use stevia for this recipe and enjoy!!

5 from 2 votes

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