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The BEST Rhubarb Crisp Recipe Ever!

This easy rhubarb crisp recipe has the just the perfect combination of tangy rhubarb mixture with a generous, thick crisp topping. I mean it…it’s the BEST way to make rhubarb desserts!

I know everyone claims that their recipes are the BEST EVER. But, seriously, I mean it! (tee hee)

When my husband walked in the door the other day with a bag full of rhubarb we’d been gifted (it’s rhubarb season!), I knew exactly what I was making first:

Mom’s Rhubarb Crisp is my all time favorite way to use rhubarb. Her old-fashioned rhubarb recipe is such an easy one and makes a perfect queintessential Spring dessert.

I’ve tried many crisps in my day, and I still say this is the best rhubarb crisp recipe ever. Although sweet desserts involve a lot of personal preference, I find it has just the perfect balance of sweetness to the tart rhubarb, and the thick buttery oat topping makes it the best ever!

How to Make Mom’s Recipe for Rhubarb Crisp 9×13 pan

Ingredients:

  • 5 cups rhubarb, cut in 1/2 inch pieces
  • 3 Tablespoons flour
  • 1 1/2 cup sugar
  • 1 cup brown sugar
  • 1 1/2 cup flour 
  • 1 cup oatmeal
  • 1 cup butter

Step by Step Instructions

Step 1: In a medium bowl, combine the 5 cups of rhubarb with 3 tablespoons flour and 1 1/2 cups sugar. Pour into the bottom of a 9 x 13 pan.

rhubarb in the bottom of 9x13 pan for rhubarb crisp recipe
The sugar brings out the natural juices in the rhubarb. If you’re using fresh rhubarb, you’ll see the juices start to run quite quickly.

Step 2: Using a large bowl, mix together the  brown sugar, flour, and oatmeal. Cut in the butter using a pastry blender until the mixture looks like course oats.

Bowl of oatmeal topping for the recipe for rhubarb crisp.
Use a pastry blender to cut in the butter for the oat topping.

Step 3: Sprinkle the crumble topping over the fruit mixture and gently pat down.

Recipe rhubarb crisp in 9x13 pan ready to be baked.

Step 4: Bake at 350 degrees for approximately 45 minutes. The juices should be bubbling around the edges and it should be golden brown.

baked rhubarb crisp recipe in 9x13 pan

Serve hot or cold – with or without a scoop of ice cream (we prefer vanilla ice cream) or whipped cream. Either way, this rhubarb crisp is delicious!

Bowl of rhubarb crisp with a scoop of vanilla ice cream on it.

For more delicious desserts, you might want to check out these:

The BEST Rhubarb Crisp Recipe Ever!

The BEST Rhubarb Crisp Recipe Ever!

Yield: 12
Prep Time: 15 minutes
Cook Time: 45 minutes
Total Time: 1 hour

This Rhubarb Crisp recipe has the just the right amount of sweetness with a generous, thick oatmeal topping. I mean it…it’s the BEST EVER!

Ingredients

  • 5 cups rhubarb, cut in 1/2 inch pieces
  • 3 Tablespoons flour
  • 1 1/2 cups sugar
  • 1 cup brown sugar
  • 1 1/2 cups flour
  • 1 cup oatmeal
  • 1 cup butter

Instructions

Step 1: Mix the rhubarb with 3 tablespoons flour and 1 1/2 cups sugar. Pour into the bottom of a 9 x 13 pan.Step 2: Mix together the remaining brown sugar, flour, and oatmeal. Cut in the butter using a pastry blender until the mixture looks like course oats.Step 3: Pour the topping over the rhubarb and gently pat down.Step 4: Bake at 350 degrees for approximately 45 minutes. The juices should be bubbling around the edges and it should be golden brown.Serve hot or cold – with or without ice cream. Either way, this rhubarb crisp is delicious!

    Nutrition Information:
    Yield: 12 Serving Size: 1 grams
    Amount Per Serving: Unsaturated Fat: 0g

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    4 Comments

    1. I made this last night & it was definitely the recipe my Mom used to make!! My birthday falls in July, right in the middle of rhubarb season, & when I got older she would often make rhubarb pie for my birthday. Thank you for bringing back the memories of that to me. Would definitely recommend this recipe to everyone.

    2. When you say, ‘oatmeal’, do you mean rapid cooking oats or; quick cooking oats or; old fashioned oats? Excited to make your recipe for dessert tonight🤩

    3. I’m about to make it It’s my sweethearts favorite The last recipe I used turned out to be a disaster yours looks so simple
      and fail proof I thought “Hey I bet even I can do this” so I’m gonna give it another try without messing it up I hope ,LOL ! “it’s still Hot here in Iowa so I decided to wait till it cooled off before running the oven and heating up the house and It’s about that time so to the kitchen I go to try your recipe I even picked up some vanilla bean ice cream hope I didn’t jinx myself because I really want to get it right this time so here I go ! wish me luck and I have just one question should I grease the pan before putting the rhubarb mixture in? Anyway Thank you for sharing your recipe it looks amazing !

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