Blackberry Slump
Updated October 10, 2023
- Total Time
- 45 minutes
- Prep Time
- 15 minutes
- Cook Time
- 30 minutes
- Rating
- Comments
- Read comments
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Ingredients
FOR THE DUMPLINGS
1 ½ cups/190 grams all-purpose flour
2 tablespoons granulated sugar
1 tablespoon baking powder
¾ teaspoon ground ginger
Kosher salt (such as Diamond Crystal)
1 cup/240 milliliters heavy cream
1 large egg (optional)
Turbinado or other coarse raw sugar for sprinkling, optional
FOR THE BLACKBERRIES
1 cup/200 grams granulated sugar
1 ½ tablespoons cornstarch
Kosher salt (such as Diamond Crystal)
6 cups/834 grams blackberries, fresh or frozen
FOR SERVING
Heavy cream or ice cream (both optional)
Preparation
- Step 1
Make the dumplings: In a medium bowl, whisk together the flour, granulated sugar, baking powder, ginger and ½ teaspoon salt. Pour in the cream and stir with a spatula until combined.
- Step 2
Prepare the blackberries: In a 10-inch cast-iron skillet (or other shallow 2-quart dish that is both stovetop- and oven-safe), whisk together the sugar, cornstarch and ¼ teaspoon salt. Whisk in ¼ cup plus 2 tablespoons/90 milliliters water, and then stir in the berries. Cook over medium heat until bubbling and then simmer for about 5 minutes, stirring occasionally.
- Step 3
Portion the dough into about 16 small dumplings (about 1 ½ tablespoons/28 grams each) and decoratively top the fruit with them. Cover the skillet with a lid, if you have one (or a sheet of aluminum foil, or a heatproof plate wider than the cooking vessel), and cook the dumplings for 15 to 20 minutes, until a wooden skewer inserted in the center of one comes out clean and the tops are dry to the touch. Let sit for about 5 minutes to cool.
- Step 4
To give the dumplings a little optional extra color and texture, prepare an egg wash: Whisk the egg and ¼ teaspoon salt in a small bowl. Brush the dumplings with the wash, sprinkle with turbinado sugar and broil for 1 to 3 minutes, watching closely, until the dumplings are nicely browned.
- Step 5
Serve warm, with a drizzle of heavy cream or a scoop of ice cream, if desired. Fruit slump is best the day it is made, but will keep tightly wrapped in the refrigerator for up to 3 days. Reheat in a 300-degree oven for about 20 minutes.
Private Notes
Comments
In Nova Scotia we make this with blueberries and call it a “grunt” because of the sound it makes as the berries reduce and bubble around the dumpling topping. Blueberry grunt is a quintessential summer dessert in this part of the world. Easy and delicious!
Excellent. I used a combination of blackberries and blueberries because I didn’t have enough blackberries on hand. It’s great with vanilla ice cream but very good without it, too.
In Québec, they are called « grands-pères » or grandfathers! And are usually steamed in a maple syrup sauce or with blueberries.
Such a great, forgiving, recipe. Didn’t have corn starch (why????) but just used some flour. Didn’t have cream, but used whole milk. End product devoured by the family because it was still awesome. And so easy!
what temperature oven? doesn’t say
Made per the recipe with the addition of some chopped candied ginger to the dough. It got lost in the mix with the Cheesecake ice cream from David Lebovitz that I made to go with it. A combination that all the party enjoyed. I can see using less sugar in the berries. Maybe the candied ginger would do better with the berries.

