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Peach and Blueberry Summer Dessert Casserole with Oat Crumble

Peach and Blueberry Summer Dessert Casserole with Oat Crumble
50min Total Time
8 people Servings
Medium Difficulty
Moderate Cost
280 kcal Calories

Summer is all about fresh, juicy fruits, and this Peach and Blueberry Summer Dessert Casserole with Oat Crumble is the perfect way to celebrate the season!

Ingredients

8
  • 4 ripe peaches, sliced
  • 2 cups fresh blueberries
  • 1/4 cup granulated sugar
  • 1 tablespoon lemon juice
  • 1 teaspoon vanilla extract
  • 1 teaspoon ground cinnamon
  • 3 cups rolled oats
  • 1 cup all-purpose flour
  • 1/2 cup brown sugar
  • 1/2 cup unsalted butter, melted
  • 1/4 teaspoon salt

Instructions

1

Preheat your oven to 350°F (175°C).

2

In a large bowl, combine the sliced peaches, blueberries, granulated sugar, lemon juice, vanilla extract, and ground cinnamon. Toss gently to coat the fruits evenly and then transfer to a greased 9x13 inch baking dish.

3

In another bowl, mix the rolled oats, flour, brown sugar, melted butter, and salt until crumbly.

4

Sprinkle the oat crumble evenly over the fruit mixture in the baking dish.

5

Bake in the preheated oven for 30 minutes, or until the fruit is bubbly and the topping is golden brown.

6

Let cool slightly before serving. Enjoy warm or at room temperature!

Kitchen Tools

  • 9x13 inch baking dish
  • Mixing bowls
  • Measuring cups and spoons
  • Spatula or wooden spoon

Chef's Tips

For added flavor, try mixing in other berries like raspberries or strawberries.
Serve with a scoop of vanilla ice cream or whipped cream for an extra treat.
Make sure not to over-bake; the fruit should be bubbly but not mushy.

Troubleshooting

If the topping is not browning, consider broiling it for the last 2-3 minutes.
If the fruit is too juicy, try adding an extra tablespoon of flour to absorb excess moisture.

Recipe Variations

Add nuts like almonds or pecans to the crumble for added crunch.
Incorporate other fruits like plums or cherries into the casserole.
Turn it into individual servings by baking in ramekins.

Healthy Alternatives

Use coconut oil instead of butter for a dairy-free option.
Substitute half of the all-purpose flour with whole wheat flour for added fiber.
Replace granulated sugar with honey or maple syrup for a natural sweetener.

Serving Suggestions

Pair it with yogurt for a balanced breakfast.
Serve it as a warm dessert alongside a scoop of ice cream.
Top with fresh mint leaves for a pop of color and flavor.

Nutrition Facts

280
Calories
4g
Protein
40g
Carbs
12g
Fat
5g
Fiber
15g
Sugar
150mg
Sodium
30mg
Cholesterol

Dietary Info

Vegetarian

Garnish Ideas

Dust with powdered sugar before serving.
Add a dollop of whipped cream or yogurt on top.
Garnish with fresh mint leaves for a vibrant touch.

Storage

Store leftovers in an airtight container in the fridge for up to 3 days.
Reheat in the oven at 350°F for about 10-15 minutes for best results.
This dish can be frozen for up to 2 months; thaw before reheating.

Leftover Ideas

Use leftovers to make a delicious yogurt parfait.
Incorporate into smoothies for added sweetness and flavor.
Reimagine as a breakfast baked oatmeal by mixing it with cooked oats.

Common Mistakes to Avoid

Don’t skip the lemon juice, as it helps balance the sweetness of the fruit.
Avoid packing the oats tightly when mixing; this ensures a crunchier topping.
Make sure to select ripe peaches for the best flavor and texture.

Frequently Asked Questions

Can I make this dish ahead of time?

Yes! You can prepare it a day ahead and store it in the fridge. Just bake it the day you plan to serve.

What can I substitute for peaches?

You can use any stone fruit such as nectarines or plums as a substitute.

Can I make this gluten-free?

Yes, simply use gluten-free oats and a gluten-free flour blend.

Is it possible to reduce the sugar content?

Absolutely! You can cut the sugar in half or replace it with a natural sweetener depending on your preference.

Can I use frozen fruit?

Yes, frozen fruits work well; just be sure to thaw and drain excess liquid before using.

Reviews

Emily
May 28, 2026
This casserole is a summer favorite in our house! So delicious!
James
Jun 14, 2026
Really enjoyed the flavors, but I wish it had a bit more crunch in the topping.
Sophia
May 27, 2026
Absolutely heavenly! I served it at a barbecue, and everyone raved about it.
Michael
Jun 1, 2026
It was good, but I think I overcooked it a bit. Next time I’ll keep a closer eye.
Olivia
May 22, 2026
I loved it! Perfect balance of sweetness, though I might add nuts for some crunch.
Liam
Jun 19, 2026
So easy to make! I’ll definitely be making this again!
Emma
Jun 13, 2026
A huge hit at our family gathering. The flavors are spot on!
Noah
May 25, 2026
I adore this recipe! It’s perfect for summer.
Ava
Jun 7, 2026
Delightful! I just added some vanilla ice cream on top, and it was divine.
Lucas
Jun 7, 2026
Tasty but needed a little more fruit for my preference.
Mia
May 29, 2026
This dessert is so good! Perfect for a warm evening outside.
Ethan
Jun 10, 2026
Great recipe! My family loved it.
Isabella
Jun 14, 2026
A simple yet delicious way to use summer fruits.
Aiden
Jun 5, 2026
Quite tasty! I might experiment with more berries next time.
Chloe
May 27, 2026
One of my new go-to desserts! Everyone asks for the recipe.
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