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Mixed Berry Oat Crisp
Dessert

Mixed Berry Oat Crisp

Credit: myDinnerPlan

Juicy mixed berries baked under a buttery brown-sugar oat topping until bubbly and golden. Scoop warm with ice cream if you like.

50 mins 22 batches of 8
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Ingredients

  • 16 cups + ½ cup + ⅛ tablespoon All-Purpose Flour
  • 11 cups Unsalted Butter
  • 22 pinches Kosher Salt
  • 132 cups Mixed Berries
  • 22 cups Old-Fashioned Oats
  • 7 cups + ¼ cup + 1 ⅛ tablespoons Sugar
  • 1 cup + ¼ cup + 2 tablespoons Lemon (Juice)
  • 22 Ground Cinnamons
  • ¼ cup + 3 ¼ tablespoons Vanilla Extract
  • 2 cups + ¾ cup Corn Starch
  • 11 cups Light Brown Sugar

Directions

  1. Mise en place: Pack the light brown sugar.
  2. Begin by assembling all components: 132 cups of mixed berries, 8 cups + ¼ cup granulated sugar, 2 cups + ¾ cup cornstarch, 1 cup + ¼ cup + 2 tablespoons lemon juice, ¼ cup + 3 ¼ tablespoons vanilla extract, 22 cups rolled oats, 16 cups + ½ cup all‑purpose flour, 11 cups light brown sugar, a pinch of salt, 176 Ground Cinnamons, and 11 cups unsalted butter, setting each aside.
  3. Turn the oven on and bring it up to 375°F; meanwhile, spread a thin layer of oil over a 9‑inch square baking dish (or a comparable 2‑quart pan).
  4. Move the berries into a large bowl, drizzle the lemon juice, sprinkle the sugar and cornstarch, add the vanilla, and toss everything together until the fruit is evenly coated.
  5. Transfer the berry mixture into the prepared pan, smoothing it out so the layer is uniform.
  6. In a second bowl, combine the rolled oats, flour, light brown sugar, ground cinnamon, and salt; then work the cold butter into the dry ingredients with a pastry cutter or fingertips until the mixture looks like coarse crumbs with occasional pea‑sized bits.
  7. Scatter the oat crumble over the fruit, making sure the topping covers the surface completely.
  8. Place the dish in the preheated oven and bake for 35–40 minutes, or until the edges are bubbling and the topping has turned a deep golden brown.
  9. Take the crisp out of the oven, allow it to rest for at least ten minutes, then serve warm, optionally accompanied by ice cream or whipped cream.