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Gluten-Free Rhubarb Muffins (Paleo)

Jun 1, 2025 · Leave a Comment

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Gluten-Free Rhubarb Muffin in a muffin pan and half a muffin on its muffin cup on a plate.
Gluten-Free Rhubarb Muffin in a muffin pan and half a muffin on its muffin cup on a plate.

These easy Gluten-Free Rhubarb Muffin are a wholesome, tasty treat! Light and fluffy almond flour muffins are packed with juicy, tart rhubarb, orange zest, cardamom and just enough honey to make sure they’re not too sweet.

And they’re also dairy-free, refined sugar-free and Paleo friendly.

Paleo rhubarb muffins in a muffin pan on a cooling rack.

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Why this recipe works

I like muffins and I like rhubarb, which is why I already have a recipe for gluten-free strawberry rhubarb muffins. But I wanted a muffin that had only rhubarb in it. This way, a) I can get more rhubarb flavor and b) I can use up more rhubarb when it’s in season.

Unfortunately, most rhubarb muffin recipes are made with flour, butter and other ingredients some of us don’t tolerate or try to avoid. So I created these rhubarb gluten-free muffins so that almost everyone – gluten-free or not – can enjoy them.

So out goes the flour and instead we’re using almond flour. (Be sure to get the superfine blanched kind and do not use almond meal.) Almond flour retains all the protein, healthy fats and fiber of almonds. But that means those fats can make baked goods kind of oily. So, after baking with almond flour for over 10 years now, I’ve learned you have to add something like arrowroot flour/starch to achieve a light, fluffy, muffin-y texture.

And even better, it means we don’t have to use butter or even a dairy-free butter substitute. Eggs and honey add just enough moisture and sweetness on their own.

As much as I like rhubarb, I want a little extra flour in these muffins. So I add orange zest, orange juice and ground cardamom, which has a subtly floral muskiness that pairs really well with rhubarb and orange.

And that’s how easy it is to make rhubarb muffins gluten-free, dairy-free and refined sugar-free!

What you need

The individual ingredients for making gluten-free rhubarb muffins in bowls on a marble table.

Ingredients:

  • 3 cups superfine blanched almond flour – Use the “scoop and level” method for measuring almond flour. Do not use almond meal.
  • ⅓ cup arrowroot flour/starch – This prevents the almond flour from making the muffins too oily.
  • 2 teaspoons ground cardamom – This pairs beautifully with rhubarb and orange.
  • ¾ teaspoon baking soda – This will react with the orange juice to help the muffins rise.
  • ½ teaspoon fine sea salt – Even sweet treats need a bit of salt to bring out all the flavors.
  • 3 large eggs, room temperature – If your eggs are cold from the fridge, submerge them in very warm water for 5 minutes.
  • ½ cup honey – This is just enough honey to sweeten the muffins without making them too sweet.
  • The zest of 1 orange – Zest the orange before cutting it in half for the juice.
  • 1½ teaspoons orange juice – This will react with the baking soda to help the muffins rise.
  • 1½ teaspoons vanilla extract – This helps round out the flavor.
  • 1½ cups (about 7.5 oz.) trimmed, diced rhubarb – Be sure to wash and dry your rhubarb stalks to remove any dirt and grit.

Equipment:

  • a cutting board
  • a chef’s knife
  • a large mixing bowl
  • a medium mixing bowl
  • measuring spoons (<– these are my favorite because they actually fit into spice jars)
  • measuring cups
  • a measuring glass
  • a microplane – for zesting the orange
  • a whisk
  • a spatula (the kind for stirring, not flipping)
  • a 12-cup muffin pan
  • muffin cups
  • a 1/4 cup ice cream/cookie scoop or ¼ cup measuring cup
  • a cooling rack (optional)

How to make Gluten-Free Rhubarb Muffins

Step 1: Heat the oven to 350° F.

Step 2: Line the muffin pan with the muffin cups.

Step 3: In a large bowl, whisk the almond flour, arrowroot, cardamom, baking soda and salt.

Step 4: In a medium bowl, whisk the eggs, honey, orange zest, orange juice and vanilla extract until well blended.

Step 5: Pour the wet ingredients into the dry ingredients and stir with a spatula until well blended.

Step 6: Stir in almost all of the diced rhubarb.

Step 7: Scoop heaping ¼-cup scoops into the muffin cups. Distribute any reserved rhubarb on the top of any muffins that look like they need more rhubarb.

Step 8: Bake for 22-25 minutes, rotating the pan halfway through, until the muffins are golden brown on top and a toothpick inserted into one comes with out with a few crumbs attached but no raw batter (it might get stained from the rhubarb, which is fine).

Step 9: Let cool completely (on a cooling rack, if using), then enjoy!

Rhubarb almond flour muffins in a muffin pan and a half muffin on a small plate.

Frequently Asked Questions (FAQ)

Can I make any substitutions?

The only potential substitute for the almond flour is finely ground sunflower seed flour (to make these muffins nut-free). Otherwise, do NOT substitute anything for the almond flour – it is a unique ingredient that behaves unlike any other.

You can substitute any other zest/juice for the orange, such as lemon, lime or grapefruit.

You can use ground cinnamon and/or ground ginger in addition to or in place of the ground cardamom.

You can use maple syrup in place of the honey.

You can use almond extract in addition to or in place of the vanilla extract.

Can I make these Gluten-Free Rhubarb Muffins in advance?

Once completely cooled, these muffins will last in the fridge for up to 5 days.

Can I freeze these Gluten-Free Rhubarb Muffins?

Yes. Place the cooled muffins (in or out of their muffin cups) on a parchment paper-lined baking sheet and place in the freezer. Once the muffins are frozen (after about 2-4 hours), transfer them to an airtight container and freeze for up to 3 months. Thaw overnight in the fridge.

Are these also Paleo Rhubarb Muffins?

Yes. The recipe as written contains no gluten, grains, dairy, refined sugar or legumes, making them suitable for a Paleo lifestyle.

You may also like:

  • Gluten-Free Strawberry Rhubarb Muffins
  • Easy Rhubarb Sauce
  • Gluten-Free Strawberry Rhubarb Crisp
  • Gluten-Free Blackberry Muffins
  • Gluten-Free Chocolate Chip Zucchini Muffins
Paleo rhubarb muffins in a muffin pan on a cooling rack.

Gluten-Free Rhubarb Muffins (Paleo)

Don Baiocchi
This easy Gluten-Free Rhubarb Muffins recipe is a wholesome, tasty treat! Light and fluffy almond flour muffins are packed with juicy, tart rhubarb, orange zest, cardamom and just enough honey to make sure they're not too sweet.
And they're also dairy-free, refined sugar-free and Paleo friendly.
No ratings yet
Print Recipe Pin Recipe
Prep Time 15 minutes mins
Cook Time 25 minutes mins
Total Time 40 minutes mins
Course Snack
Cuisine American
Servings 12 muffins
Calories 237 kcal

Ingredients
  

  • 3 cups superfine blanched almond flour not almond meal
  • ⅓ cup arrowroot flour/starch
  • 2 teaspoons ground cardamom
  • ¾ teaspoon baking soda
  • ½ teaspoon fine sea salt
  • 3 large eggs room temperature
  • ½ cup honey
  • the zest of 1 orange
  • 1½ teaspoons orange juice
  • 1½ teaspoons vanilla extract
  • 1½ cups (about 7.5 oz.) trimmed, diced rhubarb

Instructions
 

  • Heat the oven to 350° F.
  • Line a 12-cup muffin pan with muffin cups.
  • In a large bowl, whisk the almond flour, arrowroot, cardamom, baking soda and salt.
  • In a medium bowl, whisk the eggs, honey, orange zest, orange juice and vanilla extract until well blended.
  • Pour the wet ingredients into the dry ingredients and stir with a spatula until well blended.
  • Stir in almost all the diced rhubarb.
  • Scoop heaping ¼-cup scoops into the muffin cups. Distribute any reserved rhubarb on the top of any muffins that look like they need more rhubarb.
  • Bake for 22-25 minutes, rotating the pan halfway through, until the muffins are golden brown on top and a toothpick inserted into one comes with out with a few crumbs attached but no raw batter (it might get stained from the rhubarb, which is fine).
  • Let cool completely (on a cooling rack, if using), then enjoy!

Notes

Substitutions
The only potential substitute for the almond flour is finely ground sunflower seed flour (to make these muffins nut-free). Otherwise, do NOT substitute anything for the almond flour – it is a unique ingredient that behaves unlike any other.
You can substitute any other zest/juice for the orange, such as lemon, lime or grapefruit.
You can use ground cinnamon and/or ground ginger in addition to or in place of the ground cardamom.
You can use maple syrup in place of the honey.
You can use almond extract in addition to or in place of the vanilla extract.
Make ahead
Once completely cooled, these muffins will last in the fridge for up to 5 days.
Freezer info
Place the cooled muffins (in or out of their muffin cups) on a parchment paper-lined baking sheet and place in the freezer. Once the muffins are frozen (after about 2-4 hours), transfer them to an airtight container and freeze for up to 3 months. Thaw overnight in the fridge.

Nutrition

Calories: 237kcalCarbohydrates: 22gProtein: 8gFat: 15gSaturated Fat: 1gPolyunsaturated Fat: 0.2gMonounsaturated Fat: 0.4gTrans Fat: 0.004gCholesterol: 41mgSodium: 182mgPotassium: 257mgFiber: 3gSugar: 14gVitamin A: 77IUVitamin C: 2mgCalcium: 89mgIron: 0.3mg
Keyword almond flour muffins, gluten free muffins, gluten free rhubarb muffins, paleo rhubarb muffins
Tried this recipe?Mention @paleoglutenfreeguy or tag #paleoglutenfreeguy!

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Well hello there! I’m Don, the creator behind Paleo Gluten Free Guy. I share fun, vibrant recipes for good health and pure enjoyment. All of my recipes are gluten-free and the majority of them are also Paleo, meaning they’re free of grains, dairy, refined sugar and legumes.

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