If you’re looking for a unique and irresistible cookie, look no further than these Brown Sugar Rhubarb Cookies. Picture this: the tangy crunch of fresh rhubarb paired with the warmth of brown sugar and a hint of cinnamon. It’s like the perfect balance of sweet and tart in every bite. These cookies are soft, chewy, and packed with flavor. They may not be your traditional cookie, but trust me, once you try them, you’ll be hooked.
These cookies are the perfect way to celebrate rhubarb season, and they’re sure to surprise and delight anyone lucky enough to take a bite. Whether you’re baking for yourself or sharing them with friends and family, these cookies are guaranteed to be a new favorite!
Why You’ll Love Brown Sugar Rhubarb Cookies
Here’s why these cookies should be on your must-bake list:
Unique Flavor: Rhubarb might not be the first thing you think of when it comes to cookies, but its tangy bite combined with the sweetness of brown sugar creates the perfect balance.
Soft and Chewy: These cookies have a perfect chewy texture that’s comforting and indulgent with every bite.
Seasonal Delight: If you’ve got fresh rhubarb available, this is the perfect way to put it to good use in a dessert that feels just as special as it tastes.
Simple Ingredients: With pantry staples like brown sugar, cinnamon, and butter, these cookies are easy to whip up and don’t require anything fancy.
Crowd-Pleaser: These cookies are bound to stand out at any gathering and have everyone asking, “What’s the secret ingredient?” (It’s rhubarb, of course!)

Disclosure: This post contains affiliate links.If you click and make a purchase, I may earn a small commission at no extra cost to you.
Ingredients in Brown Sugar Rhubarb Cookies
Let’s take a look at the ingredients you’ll need to create these sweet and tangy treats:
Rhubarb
The star of the show! Fresh rhubarb adds that wonderful tartness that pairs beautifully with the sweetness of the brown sugar.
Brown Sugar
Brown sugar not only gives the cookies their sweetness but also adds a rich, molasses-like depth of flavor that enhances the other ingredients.
Butter
The butter gives the cookies a rich, creamy texture and helps them bake up soft and chewy.
Egg
A single egg helps bind everything together and contributes to the cookies’ perfect consistency.
Flour
Flour provides the structure for the cookies, and a touch of baking soda ensures they rise to that perfect, soft texture.
Cinnamon
Just a pinch of cinnamon adds a warm, aromatic flavor that complements the rhubarb and brown sugar perfectly.
Salt
A small amount of salt helps balance out the sweetness and enhances the other flavors.
Vanilla Extract
For that subtle, sweet note of flavor that makes everything come together beautifully.
Instructions
Ready to make these irresistible cookies? Let’s go!
Preheat Your Oven
Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper or a silicone baking mat. This will help prevent the cookies from sticking and make cleanup a breeze.
Prepare the Rhubarb
Wash the rhubarb stalks and chop them into small, bite-sized pieces. You want them small enough to blend into the dough but big enough to give you that delightful tang in each bite.
Mix the Wet Ingredients
In a large bowl, cream together the softened butter and brown sugar until the mixture is light and fluffy. Add in the egg and vanilla extract, mixing until well combined.
Combine the Dry Ingredients
In a separate bowl, whisk together the flour, cinnamon, baking soda, and salt. Gradually add the dry ingredients into the wet ingredients, mixing until just combined. You don’t want to overwork the dough.
Fold in the Rhubarb
Gently fold in the chopped rhubarb. Be careful not to crush the rhubarb too much—just enough to evenly distribute it throughout the dough.
Scoop the Dough
Use a cookie scoop or a tablespoon to drop rounded balls of dough onto your prepared baking sheet. Leave about 2 inches of space between each cookie to allow for spreading.
Bake to Perfection
Bake the cookies for 10-12 minutes, or until the edges are golden brown, and the centers look set. These cookies stay soft, so be careful not to overbake them. They’ll firm up as they cool.
Cool and Enjoy
Let the cookies cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely. You can enjoy them warm or let them cool completely—it’s up to you!
Nutrition Facts
Servings: About 18 cookies
Calories per serving: Approx. 120–150 calories (depending on size)
Preparation Time
Prep Time: 15 minutes
Cook Time: 10-12 minutes
Total Time: 30 minutes
How to Serve Brown Sugar Rhubarb Cookies
These cookies are delicious on their own, but here are a few ideas to make them even more special:
- Serve with Ice Cream: A scoop of vanilla or cinnamon ice cream makes the perfect companion to these tangy-sweet cookies.
- Pair with Tea or Coffee: Enjoy a few cookies with a cup of hot tea or coffee for an afternoon treat.
- Dessert Table: Add them to a dessert table or bring them to a potluck—these cookies are guaranteed to stand out.
Additional Tips
- Don’t Overmix: When adding the dry ingredients, be careful not to overmix the dough. Overmixing can result in dense cookies instead of light, chewy ones.
- Rhubarb Size: If your rhubarb is particularly large or tough, trim off the skin and cut it into small, even pieces to ensure it cooks evenly in the cookies.
- Storage: Store these cookies in an airtight container at room temperature for up to 3-4 days. They also freeze well if you want to save some for later.
FAQ Section
Q1: Can I use frozen rhubarb in this recipe?
A1: Yes, you can! Just make sure to thaw and drain any excess water before adding it to the dough. This will help prevent the cookies from becoming too soggy.
Q2: Can I substitute white sugar for brown sugar?
A2: While brown sugar gives the cookies a richer flavor, you can use white sugar in a pinch. However, the cookies won’t have quite the same depth of flavor or chewiness.
Q3: Can I make these cookies without cinnamon?
A3: Absolutely! If you’re not a fan of cinnamon or prefer a more subtle flavor, you can skip it entirely or try another warm spice like nutmeg or ginger.
Q4: Can I use another fruit instead of rhubarb?
A4: While rhubarb gives these cookies a unique tartness, you can experiment with other fruits like strawberries, apples, or even cherries. Just keep in mind that the texture and flavor will change a bit.
Q5: How do I know when these cookies are done?
A5: These cookies bake quickly, so keep an eye on them. The edges should be golden brown, and the centers should look set but still soft. They’ll continue to firm up as they cool.
Conclusion
These Brown Sugar Rhubarb Cookies are a deliciously different twist on your typical cookie recipe. With a unique mix of sweet and tart flavors, they’re sure to become a new favorite in your baking rotation. Whether you’re using up some fresh rhubarb from the garden or just looking for something a little outside the box, these cookies are a fun, flavorful treat. Happy baking!
Print
Brown Sugar Rhubarb Cookies
- Total Time: 27 minutes
- Yield: 24 cookies 1x
- Diet: Vegetarian
Description
Brown Sugar Rhubarb Cookies are a delightful mix of tart rhubarb and rich brown sugar, resulting in a chewy, flavorful treat. The tangy rhubarb balances out the sweetness of the brown sugar, making these cookies the perfect combination of flavors for spring or summer.
Ingredients
- 1 1/2 cups all-purpose flour
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1/2 cup unsalted butter, softened
- 1 cup brown sugar, packed
- 1 large egg
- 1 teaspoon vanilla extract
- 1 cup rhubarb, finely chopped
- 1/2 cup rolled oats
- 1/2 teaspoon cinnamon (optional)
Instructions
- Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.
- In a medium bowl, whisk together the flour, baking soda, salt, and cinnamon (if using). Set aside.
- In a large bowl, cream together the softened butter and brown sugar until light and fluffy. This should take about 3-4 minutes using an electric mixer.
- Add the egg and vanilla extract to the butter mixture and beat until fully combined.
- Gradually mix in the dry ingredients until just combined. Do not overmix.
- Fold in the chopped rhubarb and oats, mixing gently until evenly distributed.
- Drop spoonfuls of cookie dough onto the prepared baking sheet, spacing them about 2 inches apart.
- Bake for 10-12 minutes, or until the edges of the cookies are golden brown and the centers are set.
- Allow the cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.
Notes
- For an extra touch, drizzle with a simple glaze made of powdered sugar and milk after cooling.
- Make sure to chop the rhubarb finely so it distributes evenly throughout the dough.
- For a twist, you can substitute half the flour with whole wheat flour for added texture and flavor.
- Prep Time: 15 minutes
- Cook Time: 12 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cookie
- Calories: 150 kcal
- Sugar: 12g
- Sodium: 80mg
- Fat: 7g
- Saturated Fat: 4g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 21g
- Fiber: 1g
- Protein: 1g
- Cholesterol: 25mg