Table of Contents
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
- Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish or a similar size pan.
- 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.
- Spread the berry mix in the prepared baking dish in an even layer.
- 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.
- Sprinkle the oat topping evenly over the berries.
- Bake until the top is golden and the filling bubbles at the edges, about 35–45 minutes.
- 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.

Mixed Berry Crisp with Frozen Berries
Ingredients
Method
- Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish or a similar size pan.
- 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.
- Spread the berry mix in the prepared baking dish in an even layer.
- 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.
- Sprinkle the oat topping evenly over the berries.
- Bake until the top is golden and the filling bubbles at the edges, about 35–45 minutes.
- Let it cool for 10–15 minutes before serving so the filling sets a bit.




