Rhubarb Crumble Bars

I adapted this recipe from one that was featured on the Lepp Farm Market website and we quite enjoyed it.

Base:

• 1/2 cup sugar
• 2 cups flour
• 1 T baking powder
• 2/3 cup butter, softened
• 1 large egg

Rhubarb Compote:

• 5 cups diced rhubarb
• 2/3 cup sugar
• 1 T lemon juice
• 3 teaspoons cornstarch

Crumble Topping:

• 1 cup large flake oats
• 1/2 cup brown sugar
• 1/2 cup melted butter

Instructions:

1. Mix base ingredients and press into 9x13" pan.
2. Heat rhubarb with sugar and lemon juice until bubbling.  Dissolve cornstarch in equal amount of water and add to rhubarb mixture. Simmer until thickened while stirring.
3. Mix crumble topping ingredients and sprinkle over rhubarb compote.
4. Bake at 350° F for about 30'.  
5. Serve warm with ice-cream.

  *Can be cut into squares once cooled and frozen.