Old Fashioned Rhubarb Bars Recipe

by Merissa on May 8, 2014

in Recipes

Old Fashioned Rhubarb Bars Recipe - Little House Living

Rhubarb Bars Recipe

These bars are delicious....if you are a rhubarb lover!! If you are like me, your rhubarb season is once a year and usually only short lived. That is what happens for me. I try to make as many items as possible during that season, but this in one recipe that I make year after year. Several years ago, I had a neighbor that gave me a recipe that was very similar to this. Over time, I have tweaked it and changed it to make it fit perfectly for us. This recipe is what I would call the "fig newton" type of rhubarb bar. I guess that it kinda what it reminds me of. It has a top and a bottom and then a nice sauce layer in the middle. They hold together well and are Oh....so tasty!

Another great thing about this sauce mixture, is when you have that abundance of rhubarb, you can make the sauce ahead of time and freeze it. Saves time for these bars to just be put together in no time, by making the top and bottom crumble/crust for them.

I have also used cherries, from our bushes, or plums, from our trees, as a substitute for the rhubarb and made them that way. So, you can see that these bars are delicious and versatile for what you have on hand, as far as fruits.

Old Fashioned Rhubarb Bars Recipe

In a saucepan, cook together:

  • 2 T. arrowroot powder or organic cornstarch
  • 1/4 cup water
  • 1 1/4 cup sugar (I use organic evaporated cane sugar)
  • 4 cups cut up rhubarb (can be fresh or frozen)
  • 1 t. vanilla

Rhubarb Bars Recipe

Cook this mixture until it is thickened and bubbly on low to medium-low heat. It usually takes about 20 minutes.

Rhubarb Bars Recipe

While this is cooking, mix together:

  • 3/4 cup butter (softened)
  • 1 1/2 cup oatmeal
  • 1 cup brown sugar
  • 1 1/2 cup flour (or gluten free flour mix)
  • 1/2 t. baking soda
  • 1/2 t. salt

 Pin this recipe for later.

Rhubarb Bars Recipe

Use a pastry blender or fork to get a crumbly consistency.

Rhubarb Bars Recipe

Grease a 9 x 13 pan. (Merissa actually made this 9x13 pan for me! 🙂 ) Place 1/2 of the crumble mixture in the bottom of your pan and pat it down firmly. Now pour your rhubarb sauce mixture over the bottom crust. Place the remaining crumble mixture over the sauce and pat down, slightly. Bake at 375 degrees for 30 minutes.

Rhubarb Bars Recipe

Remove from the oven and cool slightly. They are best to cut while they are still a bit warm.

This Rhubarb Bars Recipe makes an incredible bar to take to a church gathering or potluck.


Looking for another rhubarb treat? Here's how to make delicious Rhubarb Smoothies! And if you have even more rhubarb in your garden right now you might want to consider making and canning up some Strawberry Rhubarb Jam.

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{ 21 comments… read them below or add one }

1 Bonnie May 8, 2014 at 5:52 pm

This sounds very good. Can’t wait for the rhubarb to grow and make some!


2 danielle May 8, 2014 at 7:41 pm

YUM! My husband would love these! I need to figure out where to get some rhubarb! I have been unsuccessful so far.


3 Karen @ From the Garden Table May 8, 2014 at 8:21 pm

I absolutely love rhubarb! These look like a great new way to try it for me!


4 Rachel H May 9, 2014 at 11:51 am

We do not have rhubarb here in Florida. I don’t think I’ve ever had any. Looks good though!


5 EnidGeorge May 9, 2014 at 2:32 pm

While rummaging through my freezer looking for some ideas for supper, I came across a package of rhubarb from last years crop here in Saskatchewan. Now thanks to you, I will be making your delicious squares.


6 Shannon {Cozy Country Living} May 9, 2014 at 2:37 pm

Yum! I love a good old fashioned dessert and these look delicious!


7 [email protected] in Pyjamas May 11, 2014 at 5:09 am

Visiting from Saturday Night Live. I adore rhubarb and I’m currently dedicating May to it on my blog. These bars look super yummy. I co-host Sweet and Savoury Sunday and would for you to stop by and share these and other recipes with us. Have a great day!


8 Molly May 11, 2014 at 9:33 pm

My husband loves rhubarb. I’ll definitely be trying this recipe this year.


9 Jazmin May 11, 2014 at 10:19 pm

I’ve never tried rhubarb before. Now I think I’m missing out because this recipe looks so delicious. I love that they’re so simple to make.


10 Lila May 11, 2014 at 11:32 pm

I love rhubarb and your bars sound delicious!


11 Julia May 12, 2014 at 12:47 am

I avoided rhubarb as a kid, but I love it now! These look terrific!


12 Hope May 12, 2014 at 8:06 pm

Yum, these look super good! I love rhubarb, it’s just so versatile in all kinds of cooking.
Visiting from Sunday Brunch at Mums Take Five.


13 Rach D May 13, 2014 at 8:58 pm

These look so tasty!!


14 Karina May 14, 2014 at 6:27 pm

These look delicious and are a MUST try! Thanks for posting the recipe to the Pintastic Pinterest Party!


15 [email protected] to the Basics! May 20, 2014 at 5:57 am

YUM! Thank you for sharing at Tuesdays with a Twist! Hope to see you again this week!


16 Mrs. Sarah Coller May 20, 2014 at 7:52 am

This looks great! I wish I still had the two big rhubarb plants I had a few years ago in Oregon!


17 Chenoa May 20, 2014 at 5:22 pm

My family loved this. They are also BIG fans of your Wacky Cake and Caramel Icing. Thank you for the wonderful recipes and tips.


18 Merissa May 22, 2014 at 9:58 am

I’m so glad they enjoyed this recipe!


19 Dawn C June 21, 2014 at 10:31 pm

I made these the other night for dessert and they were a big hit with
my family. I’m trying to avoid food waste and had a few biscotti that were getting stale, so I crushed them and used them to replace some of the flour. They turned out great!


20 Sandi July 10, 2014 at 9:08 am

I’d like to can the rhubarb mixture for using later. What are your recommendations? (Water bath or pressure canner? Time?) I love your web site. Very informative and great pictures. Thanks and keep up the great work.


21 Merissa July 10, 2014 at 9:15 am

Hi Sandi, I’ve got a recipe for Canning Rhubarb here.


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