Blackberry Cobbler with Jaca
This is the Southern-style blackberry cobbler that tastes like a burst of summer in every bite — sweet-tart blackberries bubbling under a buttery, biscuit-like topping that bakes up golden and fluffy. It comes together in under an hour with pantry staples and no fussy pie crust, and it works just as well with frozen berries straight from the freezer. Serve it warm with a scoop of vanilla ice cream or a cloud of whipped cream. Our version swaps every bit of sugar for Jaca (100% pure allulose) at double the amount — 2 cups of Jaca in place of 1 cup in the filling, and 2 tablespoons in place of 1 in the topping — so you keep the jammy, syrupy fruit and that lightly crisp, golden crust without the sugar load. Allulose dissolves, thickens, and browns just like real sugar, so the filling still sets into that glossy, spoonable jam. Adapted from Spend With Pennies. This is a Jaca-adjusted healthier version.
Ingredients
- 24 ounces blackberries (fresh or frozen (no need to thaw) — about 4 to 5 cups)
- 2 cups Jaca (allulose) (replaces 1 cup granulated sugar at 2x ratio in the filling — sweetens and helps the juices thicken into jam. Allulose dissolves and thickens just like sugar)
- 1/4 teaspoon cinnamon (optional but recommended — warms up the berry flavor)
- 3 tablespoons cornstarch (thickens the filling so it sets into a spoonable jam)
- 3/4 cup water (whisked with the cornstarch into a slurry)
- 1 1/2 cups all-purpose flour (the base of the biscuit topping)
- 2 tablespoons Jaca (allulose) (replaces 1 tablespoon granulated sugar at 2x ratio in the topping — lightly sweetens the crust and helps it brown)
- 1 1/2 teaspoons baking powder (lifts the topping so it bakes up fluffy)
- 1/2 teaspoon kosher salt (balances the sweetness)
- 1/2 cup cold butter (unsalted, grated or finely cubed — keep it cold for a flaky topping)
- 1/3 to 1/2 cup buttermilk (cold; add just enough to moisten the topping)
Sweetener Used
2 cups plus 2 tablespoons Jaca Allulose
Replaces: 1 cup plus 1 tablespoon granulated sugar
Instructions
- 1
In a large saucepan, combine the 24 ounces blackberries, 2 cups Jaca, and 1/4 teaspoon cinnamon. Cook and stir over medium heat until the mixture comes to a boil and the berries release their juices.
- 2
In a small bowl, whisk together the 3 tablespoons cornstarch and 3/4 cup water until smooth, then stir the slurry into the fruit mixture. Bring back to a boil and cook, stirring, for about 2 minutes until thickened. Allulose thickens a touch faster than sugar, so keep stirring so it does not scorch on the bottom.
- 3
Pour the hot berry filling into a greased 8-inch square baking pan. Preheat the oven to 350°F.
- 4
In a bowl, combine the 1 1/2 cups flour, 2 tablespoons Jaca, 1 1/2 teaspoons baking powder, and 1/2 teaspoon salt. Cut in the 1/2 cup cold butter using a pastry blender or two forks until the mixture resembles coarse crumbs.
- 5
Stir in the buttermilk, starting with 1/3 cup and adding more as needed, just until the dough is moistened — it should hold together when pinched but not be wet. Do not overmix; a few lumps are fine.
- 6
Drop the topping by tablespoonfuls evenly over the hot berry mixture.
- 7
Bake, uncovered, for 30 to 35 minutes, until the filling is bubbly and the topping is golden brown. Let cool for at least 10 minutes so the juices thicken, then serve warm with whipped cream or vanilla ice cream if desired.
Pro Tips
- Keep the butter and buttermilk cold. Cold fat is what gives the topping its flaky, biscuit-like texture — if it warms up, the crust turns dense.
- Allulose browns faster than sugar, so check the cobbler a few minutes early. If the topping is golden before the filling is fully bubbly, tent it loosely with foil and finish baking.
- Do not skip the 10-minute rest. The filling needs time off the heat to set; spoon into it too soon and the juices run instead of holding that jammy thickness.
- Frozen blackberries work great with no thawing — just add a minute or two to the stovetop step so they break down and the slurry can thicken.
- For a more intense sweet-tart filling, stir a tablespoon of lemon juice or a teaspoon of lemon zest into the berries. A pinch more cinnamon never hurts either.
- Want a crisper top? Sprinkle a little extra Jaca over the dropped topping before it goes in the oven for a lightly crackly, golden finish.