About This Recipe

Blackberry crisp is summer baking at its simplest. Juicy deep-purple blackberries bubble under a golden, buttery oat topping that shatters when you break through with a spoon. Ten minutes of prep, under 40 minutes in the oven, and served warm with vanilla ice cream it rivals any complicated dessert. August blackberry season is short — this is the perfect way to celebrate it.

Nutrition estimates based on USDA FoodData Central. Values are per serving and may vary.

Why You'll Love It

  • Easiest summer dessert — 10 minutes of prep, oven does the rest
  • Deep purple bubbling filling under a golden oat crust — visually stunning
  • Naturally packed with antioxidants from blackberries
  • Leftovers are incredible for breakfast with yogurt

Blackberry Crisp with Golden Oat Topping

Blackberry Crisp with Golden Oat Topping
10 min
Prep
35 min
Cook
45 min
Total
6
Servings
⭐ 4.8
Rating
340
Calories

Ingredients

  • 6 cups fresh or frozen blackberries
  • 3 tbsp sugar
  • 1 tbsp cornstarch
  • 1 tsp lemon juice
  • 1 cup rolled oats
  • 1/2 cup all-purpose flour
  • 1/2 cup brown sugar, packed
  • 1/4 tsp cinnamon
  • 1/4 tsp salt
  • 6 tbsp cold unsalted butter, cubed
  • Vanilla ice cream for serving

Instructions

  1. 1Prep blackberry filling Toss blackberries with sugar, cornstarch, and lemon juice directly in an 8x8 baking dish....
  2. 2Make the oat topping Combine oats, flour, brown sugar, cinnamon, and salt. Rub in cold cubed butter with fingers until mixture clumps in pea-...
  3. 3Top and bake Spread oat topping evenly over blackberries. Bake at 375°F (190°C) for 30–35 minutes until topping is golden and filling...
  4. 4Rest briefly Cool 10 minutes before serving — the filling is molten and needs time to thicken slightly....
  5. 5Serve warm Scoop into bowls, top with vanilla ice cream. The contrast of warm crisp and cold melting ice cream is everything....

Ingredients

6 cups fresh or frozen blackberries 3 tbsp sugar 1 tbsp cornstarch 1 tsp lemon juice 1 cup rolled oats 1/2 cup all-purpose flour 1/2 cup brown sugar, packed 1/4 tsp cinnamon 1/4 tsp salt 6 tbsp cold unsalted butter, cubed Vanilla ice cream for serving

Step-by-Step Instructions

  1. 1

    Prep blackberry filling

    Toss blackberries with sugar, cornstarch, and lemon juice directly in an 8x8 baking dish.

  2. 2

    Make the oat topping

    Combine oats, flour, brown sugar, cinnamon, and salt. Rub in cold cubed butter with fingers until mixture clumps in pea-sized pieces.

  3. 3

    Top and bake

    Spread oat topping evenly over blackberries. Bake at 375°F (190°C) for 30–35 minutes until topping is golden and filling is bubbling at edges.

  4. 4

    Rest briefly

    Cool 10 minutes before serving — the filling is molten and needs time to thicken slightly.

  5. 5

    Serve warm

    Scoop into bowls, top with vanilla ice cream. The contrast of warm crisp and cold melting ice cream is everything.

Pro Tips

🏆 Chef Tips
  • Cold butter is critical — warm butter prevents the topping from clumping and crisping.
  • Work quickly with your fingers so body heat doesn't melt the butter.
  • The filling must be visibly bubbling at edges before removing — that activates the cornstarch.
  • Frozen blackberries work perfectly — don't thaw, add 5 extra minutes to bake time.

Frequently Asked Questions

Yes — blueberries, raspberries, mixed berries, or peaches all work. Adjust sugar up for tart berries.
Cover and refrigerate up to 4 days. Reheat in 350°F oven for 10 minutes to restore crunch — microwaving makes topping soggy.
A crisp has rolled oats in the topping giving it crunchier texture. A crumble is typically just flour, butter, and sugar without oats.
Assemble and refrigerate unbaked for up to 24 hours. Bake from fridge, adding 5 minutes.

Nutrition Per Serving

340
Calories
4g
Protein
55g
Carbs
13g
Fat
6g
Fiber
32g
Sugar
115mg
Sodium
7g
Sat. Fat