Mixed Berry Crisp with Frozen Berries

Mixed Berry Crisp with Frozen Berries

Delicious mixed berry crisp topped with oats and served in a baking dish

why make this recipe

This Mixed Berry Crisp with Frozen Berries is quick and easy. You can use frozen fruit year-round. It needs simple pantry items and it makes a warm, homey dessert fast.

introduction

This recipe uses frozen mixed berries for a bright, juicy filling and a crunchy oat topping. It is great when you want a simple dessert that still feels special. If you want another berry dessert idea, try the blueberry cake with lemon cream cheese frosting for a different sweet treat.

how to make Mixed Berry Crisp with Frozen Berries

  1. Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish or a similar size pan.
  2. Put the frozen berries in a large bowl. Add ½ cup granulated sugar, 3 tablespoons cornstarch, 2 tablespoons lemon juice, 1 teaspoon vanilla extract, ½ teaspoon cinnamon, and a pinch of salt. Stir gently to combine.
  3. Spread the berry mix in the prepared baking dish in an even layer.
  4. In another bowl, mix 1 cup old-fashioned oats, 0.75 cup all-purpose flour, 0.75 cup brown sugar (packed), ½ teaspoon cinnamon, and ¼ teaspoon salt. Cut in ½ cup cold cubed butter with a fork or your fingers until the mix looks like coarse crumbs.
  5. Sprinkle the oat topping evenly over the berries.
  6. Bake until the top is golden and the filling bubbles at the edges, about 35–45 minutes.
  7. Let it cool for 10–15 minutes before serving so the filling sets a bit. While it bakes, you can also prepare a main dish like crispy parmesan chicken with a rich garlic sauce if you want a full meal.

Ingredients :

  • 6 cups mixed frozen berries (blueberries, raspberries, blackberries, strawberries)
  • ½ cup granulated sugar (adjust based on berry sweetness)
  • 3 tbsp cornstarch
  • 2 tbsp lemon juice (fresh)
  • 1 tsp vanilla extract
  • ½ tsp cinnamon
  • 1 pinch salt
  • 1 cup old-fashioned oats
  • 0.75 cup all-purpose flour
  • 0.75 cup brown sugar (packed)
  • ½ cup cold butter (cubed)
  • ½ tsp cinnamon
  • ¼ tsp salt

Directions :

  • Preheat oven to 350°F (175°C) and prepare a 9×13-inch baking dish.
  • Mix berries with sugar, cornstarch, lemon juice, vanilla, cinnamon, and salt until evenly coated.
  • Combine oats, flour, brown sugar, cinnamon, and salt. Add cold cubed butter and mix by hand until crumbly.
  • Sprinkle the topping over the berry mixture in the baking dish.
  • Bake until the topping is golden and the berries are bubbling, about 35–45 minutes.
  • Cool for about 10–15 minutes before serving. Serve warm with ice cream if you like.

how to serve Mixed Berry Crisp with Frozen Berries

Serve warm in bowls. Add a scoop of vanilla ice cream or a dollop of whipped cream. Plain yogurt or a small scoop of frozen yogurt also works. For a brunch idea, pair the crisp with healthy breakfast ideas with eggs, avocado and strawberries to make a full morning spread.

how to store Mixed Berry Crisp with Frozen Berries

  • Room temp: Let cool fully, cover, and keep up to 2 hours.
  • Refrigerator: Store in an airtight container for 3–4 days. Reheat in a 350°F oven until warm.
  • Freezer: Freeze in a sealed container for up to 2 months. Reheat from frozen in the oven at 350°F until hot and bubbling.

tips to make Mixed Berry Crisp with Frozen Berries

  • Do not thaw the berries first; frozen berries hold better and make less juice.
  • Use cold butter for a flakier topping. Cut the butter in quickly.
  • Add 1–2 extra tablespoons cornstarch if your berries are very juicy.
  • Spread the topping evenly so it browns uniformly.
  • Let the crisp rest a bit after baking so the filling firms up.

variation (if any)

  • Add ½ cup chopped nuts (walnuts or pecans) to the topping for crunch.
  • Use all strawberries or all blueberries if you prefer one berry.
  • For gluten-free, swap the flour for a 1:1 gluten-free flour blend.
  • Add a splash of maple syrup or honey to the berry mix for extra sweetness.

FAQs

Q: Can I use fresh berries instead of frozen?
A: Yes. If you use fresh berries, reduce the cornstarch by 1 tablespoon and watch baking time because fresh berries may cook faster.

Q: Can I make this ahead?
A: Yes. Assemble the crisp, cover, and refrigerate for up to 24 hours. Bake when ready, adding a few extra minutes if cold.

Q: How do I reheat single servings?
A: Use the microwave for a quick warm-up (30–60 seconds) or reheat in a 350°F oven for 10–15 minutes to keep the topping crisp.

Ellie

Mixed Berry Crisp with Frozen Berries

A quick and easy dessert using frozen berries, topped with a crunchy oat mixture, perfect for any occasion.
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings: 8 servings
Course: Dessert
Cuisine: American
Calories: 250

Ingredients
  

For the berry filling
  • 6 cups mixed frozen berries (blueberries, raspberries, blackberries, strawberries) Do not thaw the berries first.
  • 0.5 cup granulated sugar Adjust based on berry sweetness.
  • 3 tablespoons cornstarch
  • 2 tablespoons lemon juice (fresh)
  • 1 teaspoon vanilla extract
  • 0.5 teaspoon cinnamon
  • 1 pinch salt
For the oat topping
  • 1 cup old-fashioned oats
  • 0.75 cup all-purpose flour For gluten-free, swap for a 1:1 gluten-free flour blend.
  • 0.75 cup brown sugar (packed)
  • 0.5 teaspoon cinnamon
  • 0.25 teaspoon salt
  • 0.5 cup cold butter (cubed) Use cold butter for a flakier topping.

Method
 

Preparation
  1. Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish or a similar size pan.
  2. Put the frozen berries in a large bowl. Add ½ cup granulated sugar, 3 tablespoons cornstarch, 2 tablespoons lemon juice, 1 teaspoon vanilla extract, ½ teaspoon cinnamon, and a pinch of salt. Stir gently to combine.
  3. Spread the berry mix in the prepared baking dish in an even layer.
Oat Topping
  1. In another bowl, mix 1 cup old-fashioned oats, 0.75 cup all-purpose flour, 0.75 cup brown sugar (packed), ½ teaspoon cinnamon, and ¼ teaspoon salt.
  2. Cut in ½ cup cold cubed butter with a fork or your fingers until the mix looks like coarse crumbs.
Baking
  1. Sprinkle the oat topping evenly over the berries.
  2. Bake until the top is golden and the filling bubbles at the edges, about 35–45 minutes.
  3. Let it cool for 10–15 minutes before serving so the filling sets a bit.

Notes

Serve warm in bowls with ice cream, whipped cream, or yogurt. Cover and store leftovers in an airtight container for 3–4 days in the fridge, or freeze for up to 2 months.