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slice of mixed berry pie with oatmeal crumb topping on a plate with a pie in the background and a bowl of berries

Mixed Berry Pie with Oatmeal Crumb Topping

Braghan
This Mixed Berry Pie with Oatmeal Crumb Topping recipe is a perfect combination of tart and sweet flavors. The juicy berry filling and buttery oatmeal crumb topping make it a crowd-pleaser, easy to make, and perfect for any occasion.
5 from 1 vote
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Prep Time 20 minutes
Cook Time 1 hour
Resting Time 3 hours
Total Time 4 hours 20 minutes
Course Dessert
Cuisine American
Servings 8
Calories 407 kcal

Ingredients
  

  • 1 homemade or pre-made deep dish pie crust unbaked
  • 7 cups frozen mixed berries
  • 1 cup white granulated sugar
  • 1/4 cup cornstarch
  • 2 tablespoons lemon juice
  • 2 tablespoons butter

Oatmeal Crumb Topping

  • 1 cup all-purpose flour
  • 1/2 cup old-fashioned oats
  • 1/3 cup white granulated sugar
  • 1/3 cup brown sugar
  • 6 tablespoons butter softened
  • 1/4 teaspoon salt

Instructions
 

  • Preheat oven to 400 degrees Fahrenheit. Prepare the pie crust in a deep dish pie pan and place on a baking sheet. Set aside.
  • In a large saucepan, add frozen berries and white sugar and heat over medium-high heat until lightly boiling. Mix lemon juice and cornstarch together and pour into the berries. Stir and then remove from heat. Add the butter and stir until fully melted. The berry filling will thicken as it cools.
  • In a medium bowl, stir together flour, oats, white sugar brown sugar, and salt. Add in the softened butter and mix with a fork or clean hands until the topping becomes crumbly. Pour the filling into the pie crust and add the crumble topping evenly over the entire top of the pie.
  • Place the pie pan with the baking sheet into the oven and bake for 25 minutes until the topping becomes golden brown. Remove from the oven. Place a piece of aluminum foil over the entire pie without pinching the sides and return to the oven. Bake for an additional 25-35 minutes until the bottom of the crust has fully cooked.
  • Remove from oven and allow to fully cool for around 3 or more hours before slicing. Enjoy!

Notes

Storage: store any leftovers covered in an air-tight container in the refrigerator for up to 5 days or frozen for up to 3 months.
Helpful tip: let the pie fully cool to allow the filling to set up and prevent it from becoming runny.
**Nutritional value and cook times vary due to differences in appliance temperatures and product selection.

Nutrition

Serving: 8gCalories: 407kcalCarbohydrates: 71gProtein: 3gFat: 13gSodium: 169mgSugar: 46g
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