Rhubarb Bars with Cream Cheese

I’ll never forget the very first time I baked these rhubarb bars with cream cheese. It was early spring, and the rhubarb patch in my grandma’s garden was bursting with bright pink stalks. I wasn’t sure what to make with it until she handed me this well-loved, slightly stained recipe card from years ago. That moment changed everything. The tart rhubarb layer resting on a buttery, crumbly crust topped with a smooth and tangy cream cheese frosting created a flavor combo I just had to make again and again.

Now, anytime I spot fresh rhubarb at the farmer’s market or in my own garden, these rhubarb bars with cream cheese pull me right back to that sweet memory. The tartness of the rhubarb combined with a creamy, smooth layer and a crisp, buttery crust makes for a dessert that’s bright, comforting, and always a crowd-pleaser.

Hey there! If you love simple, seasonal desserts, these rhubarb bars with cream cheese will quickly become a favorite. They combine tangy, fresh rhubarb with a rich, buttery oat crust and a luscious, tangy cream cheese topping. It’s the perfect treat to make when spring rhubarb is at its peak, either from your garden or the market.

In this post, I’ll walk you through each step: from preparing the crust to cooking the rhubarb filling, and finishing with that dreamy cream cheese layer. Plus, I’ll share handy swaps, smart tips for slicing neat bars, and how to balance the sweetness just right so these bars suit your taste perfectly.

Here’s what you’ll get:

• Complete ingredient list with smart pantry substitutions
• Easy-to-follow steps with photos for crust, filling, and assembly
• Pro tips on sweetening, serving, and slicing
• Flavor twists, make-ahead advice, freezing tips, and quick answers to common questions

Whether you’re baking for a casual brunch, a family picnic, or just a nostalgic dessert, these rhubarb bars are forgiving, easy to make ahead, and totally worth the small effort for big flavor.

What Makes These Bars Special

These rhubarb bars with cream cheese nail the perfect combo of flavors and textures. The tart rhubarb filling shines against a rich and tangy cream cheese topping, all resting on a slightly chewy, buttery oat-studded crust. You’ll love that they come together with basic pantry staples and celebrate the fresh, seasonal crunch of rhubarb. Plus, chilling the bars makes cutting them neat and tidy for sharing—whether at brunch, bake sales, or a potluck. They’re as pretty as they are delicious! Prefer a citrusy twist? Try these lemon rhubarb bars for a brighter, tangier take.

What Goes Into the Bars

• all-purpose flour
• brown sugar
• rolled oats
• melted butter
• chopped rhubarb
• granulated sugar
• cornstarch
• a splash of water
• vanilla extract
• softened cream cheese
• powdered sugar

How to Bake the Bars

1. Preheat the oven to 350°F and line a 9×13-inch baking pan with parchment or lightly grease it.
2. Combine all-purpose flour, brown sugar, rolled oats, and melted butter in a mixing bowl until the mixture is crumbly but sticks together when pressed.
3. Press the crust mixture evenly into the bottom of the prepared pan.

4. Bake the crust for about 15 minutes, until the edges are golden and the crust feels firm.

   

5. While the crust bakes, combine chopped rhubarb, granulated sugar, cornstarch, and a splash of water in a saucepan.
6. Cook the rhubarb mixture over medium heat, stirring constantly, until it thickens into a shiny, jammy sauce.
7. Stir vanilla into the rhubarb filling at the end of cooking.

8. Gently spread the warm rhubarb filling evenly over the baked crust.

   

9. Return the pan to the oven and bake for another 10 to 15 minutes to help the filling set.
10. Beat together softened cream cheese, powdered sugar, and vanilla until smooth and fluffy.
11. When the bars are completely cooled to room temperature, spread the cream cheese topping over the rhubarb layer in gentle swirls.

12. Chill the assembled bars in the refrigerator for at least 2 hours, or until the cream cheese layer firms.

    

13. Use a sharp knife to cut the chilled bars into squares, wiping the knife clean between cuts for neat edges.

    

Tips for Best Results

If you feel like the rhubarb filling is a tad too tart, try stirring in some chopped strawberries while cooking the filling. I’ve done this a bunch and it adds a lovely berry sweetness that pairs perfectly. Also, a tiny pinch of lemon zest in the cream cheese topping works wonders to brighten the flavor and make those bars extra special.

These rhubarb bars with cream cheese are a hit at spring brunches and holiday dessert tables alike. I often enjoy them chilled alongside a hot cup of tea (or, in warmer months, an iced rhubarb tea) or even with a small scoop of vanilla ice cream for a little indulgence. Have you ever tried topping these bars with whipped cream? That’s another great way to dress them up!

Flavor Twists and Add-Ins

• Add strawberries: Fold in 1 to 2 cups of chopped strawberries into the rhubarb filling for a sweeter, fruitier jammy layer, as I mentioned in the tips.
• Lemon or orange zest: Mix some zest into the cream cheese topping for a fresh, zesty twist that brightens the bars.
• Nutty crust: Swap out 1/2 cup of the rolled oats for chopped nuts like almonds, pecans, or walnuts to add a delightful crunch and earthy flavor.
• Spice it up: Sprinkle 1/2 teaspoon of ground ginger or cinnamon into the rhubarb filling for warm spice notes that complement the tartness beautifully.
• Different toppings: Instead of cream cheese, try mascarpone sweetened with powdered sugar for a more delicate, creamy texture. Or for a lighter finish, just dust the bars with powdered sugar before serving.
• Gluten-free option: Use a gluten-free all-purpose flour blend in the crust and be sure the oats are certified gluten-free to keep things safe and delicious.

Storage and Make-Ahead Tips

Refrigerate: After the bars have cooled and are assembled, store them in an airtight container in the fridge for up to 5 days. Keeping them chilled really helps with neat slicing and keeps the texture just right.

Freeze: You can freeze these bars for up to 2 months. For the best texture, I recommend freezing just the crust and rhubarb layer (wrapped tightly) without the cream cheese topping. After thawing, spread the chilled cream cheese topping fresh before serving. If you prefer to freeze fully assembled bars, arrange them in a single layer on a baking sheet to freeze solid first, then wrap tightly in plastic wrap and foil or place in an airtight container to prevent freezer burn.

Thawing & Serving: When ready to enjoy, thaw the bars overnight in the fridge. If you froze them without the cream cheese topping, bring to room temperature briefly before adding the cold frosting. For a warm treat, reheat individual bars (without the cream cheese) in a 300°F oven for 5 to 8 minutes, then add the cream cheese topping just before serving so it stays nice and creamy. For a bright, fizzy pairing, serve the chilled bars with homemade rhubarb soda.

Make-ahead: These bars are fantastic to prepare ahead of time. Chill them for at least two hours or overnight so the cream cheese layer sets firm. If you want a fresher topping flavor, make the crust and filling earlier in the day and spread the cream cheese frosting just before serving.

Answers to Common Questions

Can I use frozen rhubarb for rhubarb bars with cream cheese?

Yes, you absolutely can! Just be sure to thaw and drain the rhubarb first so you don’t end up with too much liquid in the filling.

How long do rhubarb bars with cream cheese last?

They keep beautifully for up to 5 days stored airtight in the fridge. Just keep them chilled until ready to serve for the best texture; for a spring gathering, pair a square with a refreshing Rhubarb Gin & Tonic Cocktail.

Can I freeze rhubarb bars with cream cheese?

Definitely! Freeze in a single layer, then wrap tightly and store for up to 2 months. Just follow the tips above for the best results.