Fresh Baked Rhubarb Lemon Bars

Fresh baked lemon bars with rhubarb on top and baked in a sweet buttery crust. These bars are great for summer parties and backyard treats!

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fresh baked rhubarb lemon bars
Recipe insights & TIPS

Rich tasting lemon bars with thin sticks of fresh rhubarb on top and baked in a buttery pastry crust!

Sweet and tart lemon bars topped with fresh rhubarb and baked in a buttery pastry crust.

Lemon bars have always been a major weakness for me! If you don't already know me, bars and brownies are my fav baked goods. I'll take those in a heartbeat over any type of candy or crunchy snack. Wait, even a Snickers or a Reece's Peanut Butter Cup Gerry,... who even are you? I know, it's a close call over those two but anything baked in a buttery crust has my undying attention and love forever.

Lemon Bars with rhubarb and baked in a sweet buttery pastry crust!

I was inspired to cross lemon and rhubarb together after reading this past months edition of Bake From Scratch. If you love to bake, then grab it from the shelf the next time you might be at the store. They always have the most amazing pastries and pies! It turns out that rhubarb and lemon are super best friends together and push tartness to the max. This is probably why I liked it so much, anytime I make lemon bars I'll usually quadruple the amount of lemon zest that should be added. Lemon desserts should taste like lemon, so pucker up friends! I sliced these bars into 12 pieces, but wished I had done 24 mini style. They're slightly easier to eat and you can just pop them in your mouth and let the rich lemon filling meld together with the crunchy buttery crust. With an espresso is even better. Bite, sip and repeat.

Lemon bars topped with fresh rhubarb and dusted with powdered sugar for an awesome summers dessert!

So that's it, I think your Monday project should be making Rhubarb Lemon Bars and watching everyone around you become crazy  jealous. You can share but you don't have to!

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Sweet and tart lemon bars topped with fresh rhubarb and baked in a buttery pastry crust.

45 minutes
Total TIME:
75 minutes
30 minutes


  • 2 cups all purpose flour
  • 1/2 cup powdered sugar plus extra for dusting
  • 1 cup butter softened,
  • 2 sticks fresh rhubarb washed and roughly peeled
  • 4 whole eggs
  • 2 cups sugar
  • 1/2 cup fresh lemon juice
  • 1/4 cup flour
  • 1/2 tsp baking powder
  • 2 tbsp fresh lemon zest

Ingredient Swaps


  1. Preheat the oven to 350 degrees.
  2. Lightly butter a 13 x 9inch baking pan and line with parchment paper leaving some hanging over the side.
  3. Using a stand mixer combine the flour, powdered sugar, and soft butter until it comes together.
  4. Press into prepared baking pan evenly up to the sides.
  5. Bake in the oven for 20 minutes.
  6. Slice the rhubarb into three pieces and then slice them into thin strips to lay across the top of the lemon bar. Set aside while you make the filling.
  7. Whisk together the eggs, sugar, lemon juice, flour and baking powder until smooth.
  8. Stir in the lemon zest and pour the mixture into the baked crust.
  9. Carefully lay strips of the rhubarb in three rows on top of the filling keeping them close to one another. They'll move around but that's okay.
  10. Gently transfer the completed pan to the oven and bake for another 25 minutes.
  11. Let the lemon bar cool before slicing and then dust with more powdered sugar if desired.

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