Tasty Rhubarb Cookies

Finding creative ways to use up rhubarb during its short spring season can feel like a real puzzle. Sure, you’ve probably made the classic strawberry rhubarb pie a dozen times, but what about when you want something a little different—something you can grab with your coffee or pack in a lunchbox?

That’s where these rhubarb cookies come in. They’re soft and chewy with little bursts of tangy rhubarb throughout, surprisingly easy to throw together on a weekend afternoon, and a great way to introduce your family to rhubarb if they’ve never been fans of the usual pie.

What Kind of Rhubarb Should I Use?

Fresh rhubarb is your best bet for these cookies, and you’ll want to chop it into small pieces so it distributes evenly throughout the dough. The color of the stalks doesn’t really matter – both red and green rhubarb will work just fine, though the red variety might give you slightly prettier flecks in your cookies. Make sure to trim off any leaves if they’re still attached, as those aren’t edible, and only use the stalks. If fresh rhubarb isn’t in season, frozen rhubarb can work in a pinch, but be sure to thaw it completely and pat it dry with paper towels to remove excess moisture before mixing it into your dough.

Options for Substitutions

These cookies are pretty forgiving when it comes to swapping ingredients:

• Brown sugar: You can use regular white sugar instead, though you’ll lose some of that caramel-like flavor. If you want to keep it, mix white sugar with a tablespoon of molasses.
• Butter: Margarine or coconut oil work as substitutes, but butter really gives these cookies the best flavor and texture, so I’d stick with it if possible.
• Rhubarb: This is the star of the show, so don’t substitute it! Fresh rhubarb is what makes these cookies special. If you only have frozen rhubarb, thaw it completely and pat it dry with paper towels before adding it to the dough to avoid extra moisture.
• Cinnamon: Not a fan of cinnamon? Try using nutmeg or ginger instead for a different warm spice flavor.
• Egg: For an egg-free version, use 3 tablespoons of applesauce or a flax egg (1 tablespoon ground flaxseed mixed with 3 tablespoons water, let sit for 5 minutes).

Watch Out for These Mistakes While Baking

The biggest mistake you can make with rhubarb cookies is using wet rhubarb, which will turn your cookies into flat, soggy puddles – make sure to dice the rhubarb into small pieces (about 1/4 inch) and pat them dry with paper towels before stirring them into the dough.

Another common error is overmixing once you add the rhubarb, as this releases more moisture and can make the cookies spread too much, so fold it in gently until just combined.

Don’t skip the 2-minute cooling time on the baking sheet, since these cookies are more delicate than regular cookies due to the moisture from the rhubarb and need that time to firm up before moving.

For the best texture, avoid overbaking – the cookies should look slightly underdone in the center when you pull them out, as they’ll continue cooking on the hot pan.

What to Serve With Rhubarb Cookies?

These rhubarb cookies are perfect alongside a cold glass of milk or a hot cup of coffee for an afternoon snack. I love serving them with vanilla ice cream for dessert – the warm cookie paired with cold ice cream is really something special. They also work great as part of a spring brunch spread next to fresh fruit salad and yogurt. If you’re packing them for a picnic or lunchbox, they pair nicely with sliced apples or strawberries to keep the fruity theme going.

Storage Instructions

Store: Keep your rhubarb cookies in an airtight container at room temperature for up to 3 days. They’ll stay soft and chewy if you tuck a piece of bread in the container with them. If you want them to last a bit longer, pop them in the fridge for up to a week.

Freeze: These cookies freeze really well for up to 3 months. Just layer them between parchment paper in a freezer-safe container. You can also freeze the dough in balls on a baking sheet, then transfer to a freezer bag and bake them straight from frozen whenever you get a craving.

Enjoy: Let frozen cookies thaw at room temperature for about 30 minutes before eating. If you prefer them warm, microwave for 10-15 seconds or let them sit out while you make your coffee. They taste amazing either way!

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 2400-2600
• Protein: 20-24 g
• Fat: 70-80 g
• Carbohydrates: 420-440 g

Ingredients

• 1.33 cups brown sugar
• 0.66 cup butter (I like Kerrygold unsalted butter for this)
• 1 egg (room temperature, about 70°F)
• 2 cups flour (I always use King Arthur all-purpose flour)
• 1.25 tsp cinnamon
• 0.5 tsp salt
• 0.5 tsp baking soda
• 0.5 tsp baking powder
• 1.5 cups rhubarb (finely chopped into 1/4-inch pieces)
• 0.5 tsp vanilla extract

Step 1: Prepare Mise en Place and Preheat

• 1.5 cups rhubarb

Preheat your oven to 375°F.

While it heats, finely chop the rhubarb into 1/4-inch pieces and set aside on paper towels to absorb any excess moisture—this prevents the cookies from becoming too wet.

Measure out all remaining ingredients and have them ready before you start mixing, so the cooking process moves smoothly.

Step 2: Cream Butter and Sugar

• 1.33 cups brown sugar
• 0.66 cup butter
• 1 egg
• 0.5 tsp vanilla extract

In a medium bowl, combine the softened butter and brown sugar, beating them together until the mixture is light and fluffy, about 2-3 minutes.

This creaming process incorporates air into the dough, which helps the cookies rise and creates a tender crumb.

Add the room-temperature egg and vanilla extract, beating until fully combined and the mixture looks smooth and pale.

Step 3: Combine Dry Ingredients and Mix Dough

• 2 cups flour
• 1.25 tsp cinnamon
• 0.5 tsp salt
• 0.5 tsp baking soda
• 0.5 tsp baking powder
• wet mixture from Step 2

In a separate bowl, whisk together the flour, cinnamon, salt, baking soda, and baking powder.

This ensures the leavening agents are evenly distributed throughout the dough.

Add the dry ingredient mixture to the wet mixture from Step 2, stirring until just combined—don’t overmix, as this can lead to tough cookies.

I always fold gently with a spatula rather than beat, which keeps the cookies tender and prevents developing too much gluten.

Step 4: Fold in Rhubarb

• dough from Step 3
• chopped rhubarb from Step 1

Gently fold the chopped rhubarb from Step 1 into the dough, stirring just until evenly distributed.

The rhubarb will release juice during baking, creating pockets of tartness throughout the cookies.

Be careful not to overmix at this stage, as you want to preserve the tender cookie texture.

Step 5: Shape and Bake the Cookies

• dough with rhubarb from Step 4

Using a spoon or small cookie scoop, form the dough into 1-inch balls and place them about 2 inches apart on a greased or parchment-lined baking sheet.

Bake in the preheated 375°F oven for 12-14 minutes, until the edges are lightly golden but the centers still look slightly underbaked.

The cookies will continue cooking on the hot sheet, so resist the urge to bake them until they look fully set—this keeps them chewy in the center.

Step 6: Cool and Transfer

Let the baked cookies rest on the baking sheet for 2 minutes to set slightly, then transfer them to a wire cooling rack to cool completely.

This brief resting period helps them firm up enough to move without falling apart, while cooling on a rack allows air to circulate underneath and prevents them from becoming soggy on the bottom.

Tasty Rhubarb Cookies

Delicious Tasty Rhubarb Cookies recipe with step-by-step instructions.

Print Recipe Pin Recipe

Prep Time 10 minutes mins

Cook Time 15 minutes mins

Total Time 25 minutes mins

Servings: 36 cookies

Calories: 2500

Ingredients Method

Ingredients

  

• 1.33 cups brown sugar
• 0.66 cup butter (I like Kerrygold unsalted butter for this)
• 1 egg (room temperature, about 70°F)
• 2 cups flour (I always use King Arthur all-purpose flour)
• 1.25 tsp cinnamon
• 0.5 tsp salt
• 0.5 tsp baking soda
• 0.5 tsp baking powder
• 1.5 cups rhubarb (finely chopped into 1/4-inch pieces)
• 0.5 tsp vanilla extract

Method

 

1. Preheat your oven to 375°F. While it heats, finely chop the rhubarb into 1/4-inch pieces and set aside on paper towels to absorb any excess moisture—this prevents the cookies from becoming too wet. Measure out all remaining ingredients and have them ready before you start mixing, so the cooking process moves smoothly.
2. In a medium bowl, combine the softened butter and brown sugar, beating them together until the mixture is light and fluffy, about 2-3 minutes. This creaming process incorporates air into the dough, which helps the cookies rise and creates a tender crumb. Add the room-temperature egg and vanilla extract, beating until fully combined and the mixture looks smooth and pale.
3. In a separate bowl, whisk together the flour, cinnamon, salt, baking soda, and baking powder. This ensures the leavening agents are evenly distributed throughout the dough. Add the dry ingredient mixture to the wet mixture from Step 2, stirring until just combined—don't overmix, as this can lead to tough cookies. I always fold gently with a spatula rather than beat, which keeps the cookies tender and prevents developing too much gluten.
4. Gently fold the chopped rhubarb from Step 1 into the dough, stirring just until evenly distributed. The rhubarb will release juice during baking, creating pockets of tartness throughout the cookies. Be careful not to overmix at this stage, as you want to preserve the tender cookie texture.
5. Using a spoon or small cookie scoop, form the dough into 1-inch balls and place them about 2 inches apart on a greased or parchment-lined baking sheet. Bake in the preheated 375°F oven for 12-14 minutes, until the edges are lightly golden but the centers still look slightly underbaked. The cookies will continue cooking on the hot sheet, so resist the urge to bake them until they look fully set—this keeps them chewy in the center.
6. Let the baked cookies rest on the baking sheet for 2 minutes to set slightly, then transfer them to a wire cooling rack to cool completely. This brief resting period helps them firm up enough to move without falling apart, while cooling on a rack allows air to circulate underneath and prevents them from becoming soggy on the bottom.