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Blueberry Oatmeal Crumb Bars

Prep Time45 minutes
Cook Time1 hour
Total Time1 hour 45 minutes
Servings: 9 -12

Ingredients

Fruit Filling

  • 3 1/2 cups fresh or frozen blueberries
  • 1 tbsp lemon juice
  • 1 tsp lemon zest
  • 2 tsp cornstarch

Crumb Bar Base

  • 2 cups all purpose flour
  • 3/4 cup white sugar
  • 1/2 tsp fine salt
  • 3/4 cup old-fashioned oats
  • 1 cup unsalted butter melted - two sticks
  • 1 large egg yolk

Crumb Topping

  • 3/4 cup all purpose flour
  • 1/4 cup brown sugar
  • 1/4 tsp fine salt
  • 1/4 cup old-fashioned oats
  • 6 tbsp unsalted butter divided into 1 tbsp chunks

Instructions

Fruit Filling

  • In a large bowl mix ingredients with a spoon until the cornstarch disappears and set aside.

    Crumb Bar Base

    • In a food processor mix together flour, sugar and salt on a medium speed.
    • Add oats and mix thoroughly.
    • Add egg yolk and slowly pour in melted butter.
    • Tip out into the baking dish and press into a solid level layer and set aside.

      Crumb Topping

      • Place flour, sugar and salt in food processor and mix thoroughly on a medium speed.
      • Add oats and mix thoroughly and then drop in butter pieces.
      • Continue on medium until the ingredients turn into a coarse cornmeal consistency.

        Crumb Bars

        • With a slotted spoon, add a single layer of blueberries on top of the crumb bar base.
        • Scatter the crumb topping on top of the blueberries.
        • Bake in a preheated oven at 375 until the crumb topping becomes golden - approx. 1 hour. The crumb topping will crack a little and some of the blueberries will bubble through.