This post may contain affiliate links.

Rhubarb Custard Bars (AKA Rhubarb Dream Bars) have a shortbread crust, creamy custard, tart rhubarb and a smooth cream cheese frosting to top it off! It’s one of the BEST rhubarb desserts!

Jump to Recipe
Two old fashioned rhubarb custard bars (aka rhubarb dream bars) stacked up; the top one has a bite out of it.

Wanna know one of my favorite things about spring? It’s RHUBARB season!! And you know what that means?! It’s time to bake!

But before you make any decisions on what to make with that rhubarb, consider these old fashioned Rhubarb Custard Bars. They’re easy to make and always a crowd-pleaser!! It’s one of my favorite desserts and a recipe you’ll most definitely add to your annual rhubarb line up!  Just go ahead and print it out. You’ll thank me later! 😉

Ingredients needed to make rhubarb custard bars on a white background.

Ingredients Needed

  • All Purpose Flour
  • Sugar
  • Butter – I like to use salted butter.
  • Half and Half – or whole milk.
  • Eggs – I use large eggs when baking.
  • Vanilla Extract
  • Rhubarb – You can use fresh rhubarb or frozen (see FAQ’s below for details).
  • Cream Cheese – You can use regular full-fat cream cheese or the neufchâtel 1/3 less fat cream cheese, but I don’t recommend fat free.
  • Powdered Sugar
  • Whipped Topping (aka Cool Whip) – Make sure it’s thawed out completely.
A hand holding a Rhubarb Dream Bar with a bite out of it.

How to Make Rhubarb Custard Bars

Prepare the Rhubarb

Remove the leaves from the rhubarb stalks and discard them.  Then cut the rhubarb into 1/2-inch slices.  I don’t peel my rhubarb, but if it’s late in the season and the rhubarb seems tough around the edges, you can remove the outer layer with a vegetable peeler.

Make the Shortbread Cookie Crust

Stir together the flour and sugar and then cut in the butter with a fork or pastry blender to form coarse crumbs. You can also do this with a food processor if you have one.  This mixture will be very crumbly, which is okay. Press mixture into the parchment-lined pan (or pan greased with cooking spray) and bake.

A custard mixture being whisked together in a large mixing bowl.

Make the Custard Filling

Then simply combine all the ingredients (except for the rhubarb) in a large mixing bowl and whisk it until smooth.

Rhubarb pieces mixed into a custard mixture.

Then stir in the rhubarb and pour the filling into the bottom crust and bake about 30 more minutes or until the center is almost set and the edges are golden brown.

Make the Frosting

Once the bars are cooled to room temperature (on the counter or in the fridge), make the frosting. First off, make sure the cream cheese is softened. If it’s not, it’ll be extremely hard to get the mixture smooth. 

A pink spatula mixing a light and creamy frosting.

Beat together the cream cheese, powdered sugar and vanilla until smooth. Then, fold in the whipped topping (homemade or store-bought) and spread it over the baked custard layer.

Cream Cheese frosting being spread over the rhubarb custard bars.

Refrigerate and cut the rhubarb bars into squares with a sharp knife.

Frequently Asked Questions

Can I use frozen rhubarb?

You sure can! Simply thaw the rhubarb out and drain the excess moisture before adding it to the filling mixture.

How should I store rhubarb custard bars?

Due to the cream cheese and whipped topping in the bars, you will need to keep these refrigerated. You can cover them with plastic wrap or store in an airtight container.  I don’t recommend freezing these bars as the texture will change during the freeze-thaw process.

Can I make these in a square pan?

Yes!  Simply halve each ingredient and use an 8×8-inch square pan.  The baking times will be decreased 1-2 minutes.

Rhubarb Custard Bars stacked on a wooden cutting board

I’ve got several rhubarb recipes (I just love rhubarb!)…..Rhubarb Cookies and Rhubarb Muffins are two of my favorites. Then, when you’re tired of baking with rhubarb, you can whip up a batch of my Rhubarb Sauce (SO good on ice cream!) or my most delicious Rhubarb Berry Jam!

Other Delicious Rhubarb Desserts

Rhubarb Custard Pie

Easy Rhubarb Dump Cake

Rhubarb Mulberry Pie

Rhubarb Crunch

Rhubarb Custard Bar with a bite out of it

Two rhubarb custard bars.
5 from 6 votes

Rhubarb Custard Bars

Author: Kelsey
Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
20
Rhubarb Custard Bars (AKA Rhubarb Dream Bars) have a shortbread crust, creamy custard, tart rhubarb and a smooth cream cheese frosting to top it off!

Ingredients
 

Shortbread Crust

  • 2 cups flour
  • 1/3 cup sugar
  • 1 cup salted butter

Filling

  • 1 1/2 cups sugar
  • 1/2 cup flour
  • 1 cup half and half (whole milk works fine too)
  • 3 eggs
  • 1 teaspoon vanilla
  • 5 cups diced rhubarb

Topping

  • 6 ounces cream cheese softened
  • 1 1/2 cups powdered sugar
  • 1 teaspoon vanilla
  • 1 cup whipped topping

Instructions

  • Preheat oven to 350°F and line a 9×13" pan with parchment paper.
  • In a large bowl, combine the flour and sugar. Cut in the butter with a fork until crumbly.
  • Press the crust into the pan and bake for 10 minutes.
  • While the crust is baking, make the filling.
  • In a large bowl, whisk together the sugar, flour, half and half, eggs and vanilla; stir in the rhubarb.
  • Pour the filling into the crust and bake an additional 40-50 minutes or until the filling is set.
  • Let the bars cool completely.
  • To make the frosting, whisk together the softened cream cheese, powdered sugar and vanilla; fold in the whipped topping and spread over the cooled bars.
  • Keep refrigerated until ready to serve.

Nutrition

Calories: 314kcal | Carbohydrates: 42g | Protein: 4g | Fat: 15g | Saturated Fat: 9g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.5g | Cholesterol: 64mg | Sodium: 119mg | Potassium: 149mg | Fiber: 1g | Sugar: 29g | Vitamin A: 508IU | Vitamin C: 2.5mg | Calcium: 60mg | Iron: 0.4mg
“Dance Around the Kitchen” is not a dietitian or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories and other nutritional values can vary quite a bit depending on which brands were used.

did you love this recipe?

Share it with me on Facebook and find more recipes on Pinterest for more!

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe Rating




23 Comments

  1. Roger Packnett says:

    5 stars
    Kelsey, these dessert bars are the best.
    It took a little longer though to bake the final product; about 50 minutes total. Sooo good!
    Thank you,
    Roger

  2. Penny Spoden says:

    5 stars
    Love these but can’t eat the whole pan now, can I freeze them?

    1. Hi Penny – I wouldn’t recommend freezing these, but if you tried, I’d love to know how they are once you thaw them out again!! 🙂

    2. Pam Ponto says:

      How about making 2 8 x 8 pans and share one with a friend or family member. I do this with most of my baking because I don’t need all those treats and they are always well received when I give them away.

  3. 5 stars
    Definitely a keeper! A bit too sweet (and I love sweet) so next time I’ll reduce the icing sugar and the sugar in the filling by a quarter cup to start.

  4. Can you use almond milk?

    1. Though I haven’t tried it, I think it would work just fine! 🙂

  5. Just made these bars but with fresh blueberries and oh my gosh so good. Some would even say orgasmic😅 recipe was super easy and I will definitely be making this in the future!

  6. 5 stars
    I’ve made this a few times… divine!

  7. Excellent recipe!! Even people who do not like rhubarb love it!

  8. Priscilla says:

    I can’t wait to try this recipe. It looks so good! I love rhubarb and this looks like a great way to eat it!!

  9. These were delicious! I didn’t frost them because I didn’t think they needed frosting. I did freeze a few and they came out perfectly. Thank you for the recipe!👍

  10. David Babcock says:

    Awesome rhubarb bar recipe.

  11. 5 stars
    So wonderful! I sampled them at work and I don’t even like rhubarb lol and these were amazing!

    1. We’ll turn you into a rhubarb lover! 😉 Ha! Glad you enjoyed them! ~Kelsey

  12. Joni zoha says:

    Can you freeze these?

    1. Honestly, I’ve never tried to freeze these as custards don’t tend to freeze well. If you give it a try, let me know! ~Kelsey

  13. I agree with the person who said they don’t even need frosting, but they are delicious with or without it! I did 3.5 cups rhubarb and 1.5 cups strawberries. I also added some nutmeg to the custard filling just to give it a touch of warmth! Such a great recipe! 🙂 Thank you for sharing!

  14. Faye Roland says:

    Can I use 2%Milk ?

    1. You can give it a try. I’d recommend using about 1 tablespoon less milk if you go that route so it’s not too runny! 🙂

  15. Could you use real whipping cream instead of whipped topping? I suppose you would need to whip the cream first before folding in? thanks!

    1. Yes, that’s exactly right. Whip the heavy cream before folding it in.