Rhubarb Crumb Bars with Buttery Oat Topping 🍓🥮


 

Sweet, tart, and layered with golden crumble perfection! These bars feature a buttery shortbread crust, juicy rhubarb filling, and crispy oat streusel—the ultimate spring dessert.

Why You’ll Love This Recipe

✔ Perfect balance – Tart rhubarb + sweet crumble
✔ Easy to make – No mixer needed
✔ Great for gifting – Stays fresh for days
✔ Customizable – Add strawberries for a twist


Ingredients (Makes 16 bars)

Crust & Crumble

  • 1 ½ cups all-purpose flour

  • 1 ½ cups old-fashioned oats

  • 1 cup brown sugar, packed

  • ½ tsp baking soda

  • ¼ tsp salt

  • ¾ cup cold butter, cubed

Rhubarb Filling

  • 3 cups chopped rhubarb (½-inch pieces)

  • ½ cup granulated sugar

  • 2 tbsp cornstarch

  • 1 tbsp lemon juice

  • 1 tsp vanilla extract

Optional Add-Ins

  • 1 cup sliced strawberries

  • ½ tsp cinnamon (in the crumble)


Step-by-Step Instructions