This Peach Blueberry Dessert combines juicy peaches and blueberries with a sweet crumble topping for a fast, high-protein dinner finale. Perfect as a healthy picnic food or easy party food…

Ingredients

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Instructions

Step 1

Preheat your oven to 375°F (190°C). While the oven is heating, prepare your fruit filling. In a medium mixing bowl, combine the blueberries and sliced peaches. If using fresh fruit, make sure the blueberries are washed and the peaches are pitted and sliced into even 1/2-inch wedges. If using frozen fruit, do not thaw it first; the frozen berries will release more juice during baking, creating a lovely syrupy base. Add 1 tablespoon of lemon juice and 1 teaspoon of vanilla extract if desired—these brighten the fruit’s natural sweetness and add depth. Gently toss the fruit to combine without crushing the berries. Set aside while you make the crumble topping.

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Step 2

In a separate bowl, make the crumble topping. Combine 1/2 cup all-purpose flour, 1/4 cup granulated sugar, and a pinch of salt. Whisk together to evenly distribute the sugar and salt. Add the cold cubed butter (1/4 cup, unsalted) and use a pastry cutter or your fingertips to work the butter into the dry ingredients until the mixture resembles coarse meal with pea-sized butter pieces. It’s important to keep the butter cold; this ensures a flaky, tender crumble rather than a dense paste. If the butter starts to soften, pop the bowl in the fridge for 5 minutes. Stir in the rolled oats until evenly distributed. The oats add texture and a subtle nuttiness.

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Step 3

Transfer the fruit mixture into a 9-inch pie dish or an 8×8-inch baking dish, spreading it into an even layer. Sprinkle the crumble topping evenly over the fruit, covering all the exposed fruit. Do not press the topping down; leave it loose so it can crisp up and form golden brown clumps during baking. For an extra touch, you can sprinkle a teaspoon of coarse sugar over the top for added crunch.

Step 4

Bake in the preheated oven for 15 minutes, or until the fruit is bubbling around the edges and the topping is golden brown and crisp. The baking time may vary slightly depending on your oven and the ripeness of the fruit; if using frozen fruit, it may take an additional 5 minutes. You’ll know it’s done when you see thick, syrupy bubbles breaking through the crumble. The aroma of baked peaches and blueberries will fill your kitchen. Allow the crumble to cool on a wire rack for at least 10 minutes before serving. This resting period lets the juices thicken, preventing a runny dessert.

Step 5

Serve warm, optionally with a scoop of vanilla ice cream, a dollop of Greek yogurt (for extra protein), or a drizzle of heavy cream. The contrast between the warm, tender fruit and the cold topping is divine. For a high-protein twist, pair with a side of cottage cheese or a protein shake. Store leftovers covered in the refrigerator for up to 3 days. Reheat in the microwave for 30 seconds or in a 350°F oven for 10 minutes to restore crispness.

For best results

  • For the best texture, use cold butter straight from the refrigerator. If the butter warms up too much during mixing, the crumble will become greasy and lose its flakiness. You can even freeze the butter and grate it into the flour mixture for an even more even distribution. This technique ensures small butter pieces that melt in the oven, creating steam pockets that result in a light, tender crumble.
  • Choose peaches that are ripe but still firm. Overly soft peaches will break down too much during baking and make the filling mushy. If your peaches are under-ripe, let them sit at room temperature for a day or two. You can also use canned peaches in juice (drained) as a substitute, but reduce the sugar slightly since canned fruit is often packed in syrup.
  • To prevent a soggy bottom, preheat your oven fully and use a metal or ceramic baking dish that conducts heat well. Glass dishes can work but may require an extra 5 minutes. If you prefer a thicker filling, toss the fruit with 1 tablespoon of cornstarch before adding the crumble. The cornstarch will absorb excess liquid and create a jammy consistency.
  • This crumble is highly customizable. For a nutty crunch, add 2 tablespoons of chopped pecans or almonds to the crumble topping. For a gluten-free version, substitute the all-purpose flour with a 1:1 gluten-free baking flour blend and use certified gluten-free oats. The texture will be slightly different but still delicious.
  • Make ahead tip: You can assemble the crumble (without baking) up to 24 hours in advance. Cover and refrigerate the unbaked dish. When ready to bake, add an extra 5-10 minutes to the baking time since the dish starts cold. This is perfect for meal prep or when entertaining guests. The unbaked crumble can also be frozen for up to 3 months; bake directly from frozen, adding 15-20 minutes.

Variations

  • High-Protein Twist: Boost the protein content by adding 1 scoop of vanilla or unflavored protein powder to the crumble topping. Replace 2 tablespoons of flour with the protein powder and reduce the sugar slightly to balance sweetness. You can also mix 1/2 cup of Greek yogurt into the fruit filling before baking for a creamy, tangy layer. Serve with a dollop of cottage cheese for an extra 10g protein per serving.
  • Berry Medley: Substitute half the blueberries with raspberries or blackberries for a more complex flavor profile. Raspberries add tartness, while blackberries bring earthy sweetness. Adjust sugar accordingly: if using tart berries, increase sugar by 1 tablespoon. This variation is perfect for summer when berries are in season.
  • Spiced Version: Add 1/2 teaspoon of cinnamon and 1/4 teaspoon of nutmeg to the fruit mixture. You can also add a pinch of cardamom or ginger for warmth. These spices complement the peach and blueberry flavors beautifully, making the dessert feel cozy and autumnal. Top with a dollop of whipped cream mixed with a pinch of cinnamon.
  • Vegan Adaptation: Use coconut oil or vegan butter in place of dairy butter. Ensure your oats are certified gluten-free if needed. The crumble will still crisp up nicely. For the fruit, no changes needed. Serve with coconut whipped cream or vegan ice cream. This version is just as delicious and satisfies plant-based eaters.
  • Low-Sugar Option: Replace the granulated sugar with a monk fruit sweetener or erythritol in a 1:1 ratio. The crumble will still brown, though slightly less, and the sweetness will be more subtle. You can also reduce the sugar by half and rely on the natural sweetness of ripe peaches. If the fruit is very sweet, you may not miss the extra sugar at all.

Nutrition

  • Calories215 kcal
  • Total Fat12g
  • Saturated Fat7g
  • Cholesterol30mg
  • Sodium95mg
  • Total Carbohydrates26g
  • Dietary Fiber2g
  • Sugars17g
  • Protein3g

Common Questions

Can I use frozen fruit for this crumble?
Absolutely! Frozen blueberries and peaches work perfectly. Do not thaw them first; add them directly to the baking dish. Because frozen fruit releases more liquid, you may want to add 1 tablespoon of cornstarch to the filling to thicken the juices. Also, increase the baking time by 5-10 minutes to ensure the fruit is fully cooked and bubbling. The crumble topping might need a bit longer to brown; if it’s browning too quickly, tent the dish with foil for the last 5 minutes.
How should I store leftovers and how long do they keep?
Store any leftover crumble in an airtight container in the refrigerator for up to 3 days. The crumble topping will soften over time, but you can reheat it in a 350°F oven for 10 minutes to revive some crispness. Alternatively, microwave individual portions for 30-60 seconds. For longer storage, freeze the baked crumble for up to 3 months. Thaw overnight in the fridge and reheat as directed.
Can I make this crumble without oats?
Yes, you can omit the oats or replace them with an equal amount of chopped nuts (like pecans or almonds) or additional flour. The oats add texture but are not essential. If you skip them, the crumble will be more like a streusel topping. For a nut-free version, simply use all flour. The texture will be finer but still delicious.
What can I use instead of butter to make it dairy-free?
You can substitute the butter with cold coconut oil, vegan butter sticks, or even solid palm shortening. Coconut oil will impart a subtle coconut flavor that pairs nicely with peaches and blueberries. Use the same amount (1/4 cup) and keep it cold. The crumble will be slightly different in texture but equally tasty.
Why is my crumble topping not crispy?
A soggy crumble usually results from either the butter being too warm when mixed, or the oven not being hot enough. Ensure your butter is very cold and your oven is fully preheated. Also, don’t overmix the topping; you want pea-sized butter pieces. If the topping browns before the fruit is bubbling, tent with foil and continue baking until the fruit is done. Another tip: let the crumble rest for 10-15 minutes after baking to allow steam to escape.
Can I double this recipe for a crowd?
Yes, simply double all ingredients and use a 9×13-inch baking dish. The baking time will be similar, but start checking at 20 minutes. You may need to add 5-10 minutes. Keep an eye on the topping; if it browns too quickly, cover loosely with foil. This recipe scales well for potlucks or family gatherings.