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Keto Muffin in a Mug: Lemon Poppy Seed with Easy Glaze Icing

Looking for an easy-and-sweet keto treat? Try this Keto Muffin in a Mug, which is a keto lemon poppy seed muffin with a delicious easy glaze icing.

closeup of a keto muffin in a mug with easy glaze keto icing on top

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You can’t go wrong with a lemon poppy seed muffin, especially a keto lemon poppy seed muffin that takes less than five minutes to make! It’s topped with a delicious keto glaze icing and can be served for breakfast, dessert, or as a snack.

Why You’ll Love This Keto Muffin in a Mug

  • It takes less than five minutes to make.
  • It contains only 2g net carbs.
  • It makes for a tasty breakfast, dessert, or snack.

Ingredients Needed to Make This Easy Low Carb Muffin in a Mug

Ingredient quantities for this low carb muffin in a mug recipe are located in the recipe card at the end of the post.

  • Coconut oil
  • Heavy whipping cream
  • Lemon extract
  • Large egg
  • Coconut flour
  • Chia seeds (or poppy seeds; see the section “Keto Lemon Poppy Seed Muffin with Chia Seeds” below for why I use chia seeds instead of poppy seeds in this recipe)
  • Swerve Confectioners
  • Baking powder
  • Unsweetened almond milk (plain or vanilla – I prefer vanilla!)

How to Make a Lemon Poppy Seed Keto Mug Muffin Cake {Quick Overview}

This is just a quick overview of some of the steps involved in making the lemon poppy seed keto mug muffin. For the recipe in detail, including exact measurements used at each step, scroll to the recipe card at the end of the post.

Melt coconut oil in a microwave-safe mug or ramekin. Then add heavy whipping cream, lemon extract, and the egg.

overhead view of mug with melted coconut oil and heavy whipping cream

In a small bowl, combine all dry ingredients. Then add the dry ingredients to the wet ingredients.

overhead view of keto microwave muffin in a mug liquid batter in a white ramekin

Microwave on high for 50-90 seconds, starting to check the low carb mug muffin at 50 seconds to ensure it’s not overcooked.

When finished, put a fork in the mug cake and carefully lift it up and flip it over. If the bottom isn’t fully cooked yet (this will depend on your microwave), cook it for another few seconds.

fully cooked keto lemon low carb muffin in a mug next to a striped towel

Then make Easy Glaze Icing and drizzle on top.

overhead view of keto lemon low carb mug muffin with easy glaze icing drizzled on top

TIP: Your mug cake can be enjoyed in the mug, fully intact on a plate or bowl, or cut in half on a plate or bowl. Enjoy!

Keto Lemon Poppy Seed Muffin with Chia Seeds

You may have noticed that I’ve referred to this as a “Keto Lemon Poppy Seed Muffin” a few times, but the recipe itself uses chia seeds.

The reason is this: the flavor – and the look! – is pretty much the same no matter if you use poppy seeds or chia seeds, but I prefer to use chia seeds because they expand slightly in the mixture (they have the ability to absorb 10-12x their weight in water) and make for a moister muffin. But if you have poppy seeds on hand, feel free to use them!

What to Serve with a Low Carb Mug Muffin

You can enjoy this muffin as-is, or you can add some butter or coconut oil to boost the fat content. (I personally love it with some melted virgin coconut oil. Virgin coconut oil has a sweet, light coconut flavor compared to refined coconut oil, which is flavorless.)

Nutrition Facts for A Keto Lemon Poppy Seed Muffins

Per serving (one muffin with glaze icing):

  • 165 calories
  • 12g fat
  • 7g protein
  • 2g net carbs

side view of keto mug muffin on a white plate

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I hope you love this easy low carb lemon poppyseed muffin! If you liked this post, I would so appreciate you giving it a share by using the social sharing icons. THANK YOU!

closeup of a keto muffin in a mug with easy glaze keto icing on top

Keto Muffin in a Mug: Lemon with Easy Glaze Icing

Print Pin Rate
Course: Breakfast, Snack
Cuisine: American, Southwestern
Keyword: keto lemon poppy seed muffins, keto muffin in a mug, keto muffins, keto mug cake, keto mug muffin, low carb mug muffin
Prep Time: 2 minutes
Cook Time: 2 minutes
Total Time: 4 minutes
Servings: 1
Calories: 165kcal

Ingredients

Mug Cake

Glaze Icing

Instructions

  • Melt coconut oil in a microwave-safe mug or ramekin. Then add heavy whipping cream, lemon extract, and the egg. Whisk until yolk is incorporated and mixture is well-combined.
  • In a small bowl, combine coconut flour, chia seeds, erythritol, and baking powder. Mix thoroughly to combine.
  • Add dry ingredients to the mug (or ramekin), then mix thoroughly until well-combined.
  • Place in the microwave for 50 to 90 seconds on high, being careful not to overcook. Check at 50 seconds and again at 10-15 second increments to ensure you remove it at the right time.
  • When finished, put a fork in the mug cake and carefully lift it up and flip it over. If the bottom isn’t fully cooked yet (this will depend on your microwave), cook it for another few seconds.
  • Make Glaze Icing and drizzle on top.
  • Your mug cake can be enjoyed in the mug, fully intact on a plate or bowl, or cut in half on a plate or bowl.

Nutrition Facts
Keto Muffin in a Mug: Lemon with Easy Glaze Icing
Amount Per Serving
Calories 165 Calories from Fat 108
% Daily Value*
Fat 12g18%
Saturated Fat 7g44%
Trans Fat 1g
Cholesterol 171mg57%
Sodium 87mg4%
Potassium 131mg4%
Carbohydrates 6g2%
Fiber 4g17%
Sugar 1g1%
Protein 7g14%
Vitamin A 313IU6%
Vitamin C 1mg1%
Calcium 81mg8%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.

Nutrition Disclaimer



Nutrition facts are included as a courtesy only. They are accurate to the best of our knowledge based on the ingredients and brands used, but their accuracy is not guaranteed. If applicable, sugar alcohols have already been removed from the total carb count.

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  • So many Keto recipes require a microwave. We don’t own one, nor do we have any desire to own one. Would it be possible to include alternative instructions for we dinosaurs? Thanks so much. They look yummy!

    • Hi Lorna! 🙂 I haven’t tested this recipe in an oven yet, but when I do, I will update the recipe.

Welcome! I’m Jessica.

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