Ingredients:

  • 1.5 cups all-purpose flour
  • 0.5 cup unsalted butter, cold and cubed
  • 0.25 cup granulated sugar
  • 0.25 tsp salt
  • 1 cup fresh strawberries, diced
  • 1 cup fresh blueberries
  • 2 tbsp cornstarch
  • 3 tbsp granulated sugar
  • 1 tsp lemon juice
  • 0.75 cup rolled oats
  • 0.5 cup all-purpose flour
  • 0.5 cup brown sugar, packed
  • 4 tbsp unsalted butter, cold and cubed
  • 0.5 tsp ground cinnamon

Instructions:

  1. Preheat your oven to 375°F (190°C) and line a 9x9 inch baking pan with parchment paper.
  2. In a bowl, combine 1.5 cups flour, 0.25 cup sugar, and 0.25 tsp salt. Cut in 0.5 cup cold cubed butter until the mixture resembles coarse sand.
  3. Press the dough firmly and evenly into the bottom of the prepared pan.
  4. Toss diced strawberries and blueberries with 2 tbsp cornstarch, 3 tbsp sugar, and 1 tsp lemon juice until evenly coated.
  5. Spread the berry mixture in a flat, even layer over the crust.
  6. Mix 0.75 cup rolled oats, 0.5 cup flour, 0.5 cup brown sugar, and 0.5 tsp cinnamon. Rub in 4 tbsp cold cubed butter with fingertips until clumps form.
  7. Sprinkle the crumble topping evenly over the berries.
  8. Bake for 20 minutes until the edges are bubbling and the topping is a mahogany-colored gold.