Rhubarb Crumble Squares

Follow our step-by-step guide on how to make Rhubarb Crumble Squares.

1. Step 1

   Preheat your oven to 350°F (175°C). Lightly coat an 8x4-inch loaf pan with cooking spray.

2. Step 2

   In a deep saucepan, combine water and sugar, stirring until the sugar is fully dissolved. Bring the mixture to a low boil over medium heat.

3. Step 3

   Add the chopped rhubarb to the saucepan and let it simmer uncovered for about 10 minutes, or until the rhubarb is soft. If necessary, add a couple of tablespoons of water to help soften the rhubarb. Once done, remove from heat and transfer the rhubarb to a bowl.

4. Step 4

   In a separate bowl, mix together oats, whole wheat flour, and cinnamon. Create a well in the center and pour in the maple syrup and melted butter. Stir until all ingredients are well combined and set aside.

5. Step 5

   In another small bowl, whisk together all-purpose flour, baking powder, and salt for the crust.

6. Step 6

   In a separate bowl, combine cashew milk, melted butter, and vanilla extract. Stir in sugar until well mixed, then pour this mixture into the crust flour mixture, stirring just until combined.

7. Step 7

   Press the crust mixture evenly into the bottom of the prepared loaf pan using a spatula (wet the spatula with water to prevent sticking). Spread the rhubarb filling evenly over the crust, then sprinkle the oat topping mixture on top of the rhubarb.

8. Step 8

   Bake in the preheated oven for 15 to 19 minutes, or until the juices are bubbling and the crust is golden brown. Allow the bars to cool completely in the pan at room temperature. For best results, let the bars rest for at least 3 hours before slicing and serving.