Craving bread but sticking to your keto lifestyle? Say hello to the 90-Second Low-carb Keto Mug Bread—your quick and easy solution for a low-carb, high-fat fix. With just a few ingredients and a microwave, you’ll have a fluffy, sliceable bread ready in less time than it takes to toast a slice from the store!
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When I first discovered 90-Second Keto Bread, I was skeptical—how could something so quick actually taste good? But one hectic morning, as I stared longingly at my kids’ toast while sticking to my keto plan, I decided to give it a shot. I whipped up the batter, popped it in the microwave, and—voilà!—out came this fluffy little miracle.
I toasted it, spread a generous layer of butter, and took a bite. Honestly, it was a game-changer. That morning, I didn’t just stick to my goals—I felt like I’d won a small battle in the war of convenience vs. healthy eating. Now, it’s my go-to whenever I’m craving bread, and even my non-keto friends ask me to make it for them!
It’s proof that delicious doesn’t have to be complicated—or time-consuming.
Ingredients You’ll Need
- 3 tablespoons almond flour (or coconut flour for a nut-free option)
- 1 tablespoon unsalted butter (or coconut oil for dairy-free)
- 1 large egg
- ½ teaspoon baking powder
- Pinch of salt (optional, to taste)
- ¼ teaspoon seasoning of choice (optional). I used Garlic powder.
- ¼ teaspoon herb of choice. I used dried Rosemary.
Instructions
Prepare Your Mug: Choose a microwave-safe mug or ramekin. Lightly grease the inside with butter or oil to prevent sticking.
Melt the Butter: Add the butter (or coconut oil) to the mug and microwave for about 15–20 seconds until melted. Swirl it around to coat the mug and then let it cool slightly.
Mix the Batter: Add the almond flour, egg, baking powder, and salt to the mug. Mix well with a fork until the batter is smooth and lump-free.
Microwave: Microwave the mug on high for 90 seconds. The bread should puff up and feel firm to the touch. If it’s not fully set, microwave for an additional 10–15 seconds.
Cool and Slice: Let the bread cool for a minute, then carefully remove it from the mug. Slice it in half or thirds, and it’s ready to enjoy!
How to Use Your Keto Mug Bread
Toast It: Pop slices in a toaster, air fryer or pan to get a golden, crispy edge for 2 minutes.
Make Sandwiches: Perfect for breakfast sandwiches, BLTs, or as a burger bun.
Spread It: Top with avocado, cream cheese, or sugar-free jam.
Substitutions and FAQs
Can I use coconut flour instead of almond flour?
Yes! Coconut flour works great as a substitute, but it’s much more absorbent. Use only 1–1.5 tablespoons of coconut flour in place of 3 tablespoons of almond flour. You may also need to add an extra teaspoon of melted butter or oil for moisture.
Can this keto mug bread recipe be doubled?
Yes, the keto mug bread recipe can be doubled! Simply double all the ingredients and split the batter into two mugs, or use a larger microwave-safe dish. Cooking time may need slight adjustment, so check for doneness by ensuring the bread is firm and cooked through in the center. When doubling the keto mug bread recipe, you’ll likely need to increase the cooking time by 30 seconds to 1 minute, depending on your microwave’s power and the size of your dish. Start with the usual time, then add 15-second intervals until the bread is firm and fully cooked in the center.
Can I make this bread without a microwave?
Absolutely! You can bake the batter in an oven-safe ramekin at 350°F (175°C) for 10–12 minutes or until set. A toaster oven also works well for this.
Is this bread gluten-free?
Yes, 90-second keto bread is completely gluten-free, as it’s made with almond or coconut flour instead of wheat-based flour. Just ensure your baking powder is gluten-free as well.
How do I store leftovers?
If you don’t eat the bread right away, let it cool completely, wrap it in plastic wrap or an airtight container, and refrigerate. It stays fresh for up to 3 days. Toast or warm it before serving for the best texture.
Can I make this bread dairy-free?
Yes! Replace the butter with coconut oil, olive oil, or a dairy-free butter substitute. The result will still be delicious and keto-friendly.
What can I add for extra flavor?
- Savory: Garlic powder, dried herbs, shredded cheese, or a pinch of salt.
- Sweet: Cinnamon, vanilla extract, or a few drops of sugar-free sweetener.
Can I make this bread egg-free?
Yes! Use a flax egg as a substitute. Mix 1 tablespoon of ground flaxseed with 2.5 tablespoons of water, let it sit for 5 minutes to create a “flax egg,” and use it as a replacement.
Can I toast this bread?
Definitely! Once the bread is cooked, let it cool slightly, slice it, and toast it for 2-3 minutes in a toaster, air fryer or skillet for a crispy, golden texture.
Does this bread taste eggy?
The eggy flavor is minimal, but if you’re sensitive to it, add a pinch of garlic powder, onion powder, or cinnamon (depending on whether you’re going for savory or sweet) to mask the taste.
What Mug do you use?
A lot of people have been asking about the glass mug I used in the video. It’s actually my favorite coffee mug! It’s called the Café Glass Coffee Mug, and it holds 16oz. Plus, it’s totally microwave-safe.
That said, you don’t have to use the exact same mug—any microwave-safe coffee mug will work just fine. And if you want something most people already have at home, a Pyrex glass measuring cup is perfect for the job too!
More Low Carb Bread Buns You’ll Love
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Easy 90-Second Keto Bread in a Mug
Ingredients
- 3 Tablespoons Almond flour (or coconut flour for a nut-free option)
- 1 Tablespoon unsalted butter (or coconut oil for dairy-free)
- 1 Large egg
- 1/2 Teaspoon baking powder
- Pinch of salt optional, to taste
- 1/4 Teaspoon garlic powder Optional. Or seasoning of choice.
- 1/4 Teaspoon Herb of choice Optional. I used dried Rosemary.
Instructions
- Prepare Your Mug: Choose a microwave-safe coffee mug or ramekin. Lightly grease the inside with butter or oil to prevent sticking.
- Melt the Butter: Add the butter (or coconut oil) to the mug and microwave for about 15–20 seconds until melted. Swirl it around to coat the mug and then let it cool slightly.
- Mix the Batter: Add the almond flour, egg, baking powder, and salt to the mug. Mix well with a fork until the batter is smooth and lump-free.
- Microwave: Microwave the mug on high for 90 seconds. The bread should puff up and feel firm to the touch. If it’s not fully set, microwave for an additional 10–15 seconds.
- After the timer beeps, take the mug out and let rest, and cool for 2-3 minutes.Then take the butter knife and slide it along the inner walls of the mug to ensure the bread is separated from the mug easily.Flip the mug on the cutting board and the bread loaf is out of the mug!
- Slice the bread loaf into 4 slices (usually come out 3 or 4 slices) and it's ready to eat as is – delicious!
CAN YOU PLEASE TELL ME, WHAT’S THE NAME OF THE GLASS MUG, IN YOUR RECIPE! THANK YOU!
Hi Sophie, it’s my favorite coffee glass mug, called Anchor Hocking Café Glass Coffee Mugs, here’s the link for a set of 6 of them on Amazon 16 oz each mug
Toast is a bit on a dry side, grilling the bread is definitely a key! So delicious. I make it every day
Can you tell me what the carb count is? I do t see the carb count anywhere.
Hi Susan, I updated the recipe and included the nutrition information, including carbs. Please take a look. Total carb count is 4-5g in one serving. And by serving I mean the entire bread loaf. I hope this is useful.
On the top left-hand side of the photograph below, is a glass mug, I wish to know where to buy it and what’s it called
Hi Sophie, it’s my favorite coffee glass mug, called Anchor Hocking Café Glass Coffee Mugs, here’s the link for a set of 6 of them on Amazon https://amzn.to/4gIvG86 16 oz each mug
Nutritional information for the mug bread is for one serving- how much is one serving? The whole recipe or one slice?
The whole mug bread is one serving. It can be cut into 3-4 slices… so one slice is 1/4 of nutrition value
Just tried this. I eat low-carb but my daughter LOVES carbs. She came downstairs, tried a slice and declared she’s going to quit her morning bagel in favor of this!!!??. Thank you, TONS!
This is amazing! So glad you and your daughter enjoyed… check out my low carb bagel recipe that insanely delicious… she may love it even better ???
Do you need to change anything if coconut flour is used?
You can use the same amount of coconut flour and other ingredients
Will this work with flaxseed meal?
Absolutely.. add the same amount.. let me know if you made it and how it tasted
Thank you for the recipe. Does the nutritional info include all the ingredients – including the sugar? Thanks!
Your welcome! Yes including sugar and you can substitute for preferred sweetener of your choice
I don’t use (or own) a microwave. How else can this be cooked?
If you have oven, bake for 15-20 min at 350F
Love this recipe. I make it using butter and honey for sweetener. Wonderful for breakfast or small sandwiches. I use a straight sided coffee cup for a nicely shaped loaf. Sometimes top with cream cheese and strawberry jam. Never found it dry after toasting.
How can you make a larger quantity of this. Need recipe.
You can double the recipe in a larger container
Love this! Have been looking for something to answer the occasional bread craving. Toasted and then a little honey is a wonderful treat. Thank you!
Where is the 71mgs of sodium coming from
Egg and baking powder
Rice flour work?
Have not tried, but feel free to test it out and let me know if worked… I don’t see why not… good luck
Well I tried it. It’s definitely edible. I used granulated sugar, olive oil ,and added 30 seconds to the cook time. I’m not sure the extra 30 seconds was necessary but the dough looked wet. It’s not overly dry so I’m confident that was the right decision. I used a pint Wide Mouth Mason jar which would easily accommodate doubling the recipe. I intend to try that next time perhaps add onion powder or some other herbs to just give it a bit of oomph, but it’s definitely edible.
Would like to double or triple, how long will you cook in microwave or oven?
Same cooking time should be good. If looks undercooked upon inspection, pop them back for another 30-60 seconds… let me know how it came out
I just tripled recipe. I started at 90, looked a little wet and added another 45 seconds. Came out great!
Love it, but would like to double or triple recipe, how long would you cook it, any other changes?
Same cooking time should be good. If looks undercooked upon inspection, pop them back for another 30-60 seconds… let me know how it came out
Can egg substitute be used? Will there be a difference in the texture?
Should be fine. Did you try it? Please Let me know if it worked
Sorry it didn’t work as well as I hoped. The liquid eggs were very thin but didn’t seem to provide enough liquid leaving the mix very dry. Maybe doubling the equivalent would have worked.
Sorry it didn’t work out.. can you use a regular ?? Thank you very much for trying ? and providing your feedback!
As good as you say, thanks.