If you’re looking for the perfect way to use up fresh rhubarb, these cream cheese rhubarb bars are exactly what you need. This recipe layers a buttery oat crumble, a silky smooth cream cheese filling, and a sweet-tart rhubarb topping into one show-stopping dessert. Whether you’re baking for a summer potluck, a weekend brunch, or just because your garden is overflowing with rhubarb, these bars deliver big flavor with surprisingly simple steps. Get ready to fall in love!

Why You’ll Love This Recipe

Sweet meets tart in the best way. The tangy rhubarb filling balances perfectly with the creamy, lightly sweet cream cheese layer — every bite is a flavor adventure.
That crumble is everything. Made with butter, oats, and brown sugar, the crumble base and topping bake up golden, crispy, and absolutely addictive.
Easy enough for any skill level. There are no fancy techniques here — just a few simple layers and a 30-minute bake time.
Feeds a crowd. This 9×13 pan cuts into 12 generous bars, making it ideal for gatherings, bake sales, or meal-prepped snacks.
A seasonal star. Rhubarb has a short growing season, and this recipe is one of the most delicious ways to celebrate it while it lasts.

Ingredients

Rhubarb Layer

5 cups rhubarb, chopped
3/4 cup white sugar
1 tablespoon water
1 tablespoon corn starch

Cream Cheese Layer

2 boxes cream cheese (8 oz. brick), room temperature
1/2 cup powdered sugar
1 teaspoon pure vanilla extract
1 egg

Crumble Layer

1 cup salted butter
1 3/4 cups all-purpose white flour
1 cup old-fashioned rolled oats
3/4 cup brown sugar
1 teaspoon salt

Notes & Substitutions

Fresh rhubarb works best here, but frozen rhubarb (thawed and drained) is a great year-round swap. Make sure your cream cheese is fully at room temperature before mixing — cold cream cheese leads to a lumpy layer. If you only have unsalted butter, simply increase the salt in the crumble to 1 1/2 teaspoons. Old-fashioned rolled oats give the best texture; quick oats will work in a pinch but will be a bit softer.

Instructions

Preheat & prep. Preheat your oven to 350°F (175°C). Generously coat a 9×13-inch baking pan with non-stick cooking spray. Setting this up first means you’re ready to go once the layers are made.
Make the rhubarb layer. Add the chopped rhubarb and white sugar to a medium saucepan over medium heat. Cook, stirring occasionally, until the rhubarb softens and begins to break down, about 8–10 minutes. In a small bowl, whisk together the water and cornstarch until completely smooth, then pour it into the saucepan. Cook for an additional 2 minutes, stirring constantly — the mixture will thicken and turn glossy. Remove from heat and set aside to cool completely. Cooling is important so it doesn’t melt the cream cheese layer.
Make the cream cheese layer. In the bowl of a stand mixer (or using a hand mixer), combine the room-temperature cream cheese, powdered sugar, pure vanilla extract, and egg. Beat on medium speed until the mixture is completely smooth and fluffy, about 2–3 minutes. Set aside.
Make the crumble layer. In a large bowl, mix together the salted butter, all-purpose white flour, old-fashioned rolled oats, brown sugar, and salt until a crumbly mixture forms. You can use a fork, a pastry cutter, or even your hands.
Build the base. Pour half of the crumble mixture into the prepared pan. Press it firmly and evenly into the bottom — use the flat bottom of a glass or measuring cup to get a nice, compact layer. This helps it hold together when sliced.
Layer and bake. Spread the cream cheese mixture evenly over the crumble base. Pour the cooled rhubarb mixture over the cream cheese layer and smooth it out. Scatter the remaining crumble mixture evenly over the top. Bake for 30 minutes, or until the top is lightly golden and the edges are set.
Cool and cut. Allow the bars to cool completely in the pan before cutting into 12 pieces. Chilling in the refrigerator for 30 minutes speeds this up and makes for cleaner slices.

Pro Tips & Troubleshooting

Most common mistake: Skipping the cooling step for the rhubarb layer. If it’s still warm when you spread it, it will thin out the cream cheese layer and you’ll lose those beautiful distinct layers.

Technique tip: Press the base crumble layer firmly and evenly — a well-packed base holds the bars together and prevents crumbling when you slice them.

Tip for clean cuts: Use a sharp knife wiped clean between each cut for bakery-worthy slices.

Troubleshooting: If your bars seem too soft after 30 minutes, give them an extra 5 minutes in the oven. Every oven is different, and you want the top crumble to be golden brown before pulling them out.

Serving, Storage & Variations

Serving: These bars are delicious served slightly chilled or at room temperature. Add a dollop of whipped cream or a scoop of vanilla ice cream for an extra-indulgent dessert.

Storage: Store covered in the refrigerator for up to 5 days. Because of the cream cheese layer, these bars must be kept cold. To freeze, wrap individual bars tightly in plastic wrap and store in a freezer bag for up to 2 months. Thaw overnight in the fridge.

Variations:

Strawberry-Rhubarb Bars: Replace 2 cups of rhubarb with fresh or frozen strawberries for a classic flavor combo.
Lemon Cream Cheese Bars: Add 1 tablespoon of fresh lemon zest to the cream cheese layer for a bright, citrusy twist.
Nut Crumble Topping: Stir 1/2 cup of chopped pecans or walnuts into the crumble mixture for added crunch and richness.

Nutrition Information

Nutrition values are estimates based on 1 bar (1/12 of the recipe) and may vary depending on specific ingredients used.

Nutrient	Per Serving
Calories	~420 kcal
Protein	5 g
Carbohydrates	48 g
Fat	23 g
Fiber	2 g
Sugar	29 g
Sodium	280 mg

Frequently Asked Questions

Can I use frozen rhubarb for cream cheese rhubarb bars?

Yes! Thaw the frozen rhubarb completely and drain off any excess liquid before cooking. This prevents the rhubarb layer from becoming too watery.

Do these bars need to be refrigerated?

Absolutely — because of the cream cheese layer, these bars should always be stored in the refrigerator. They’ll keep well for up to 5 days covered.

Can I make these bars ahead of time?

Yes, these are a great make-ahead dessert! Bake them the day before, let them cool fully, and refrigerate overnight. They actually slice even more cleanly the next day.

Conclusion

These cream cheese rhubarb bars are truly something special — a buttery oat crumble, a velvety cream cheese filling, and a tangy rhubarb layer all in one dreamy bite. Once you try them, they’ll become your go-to rhubarb recipe every single season. I hope your kitchen smells absolutely amazing while these bake! Give this recipe a try and let me know how they turned out in the comments below. Don’t forget to leave a rating and tag your photos on social media — I’d love to see your beautiful bars!