Marionberry Cobbler

Marionberry cobbler is Oregon’s proudest dessert — a bubbling dish of the state’s signature blackberry, the Marionberry, baked under a golden, buttery biscuit topping and served warm with vanilla ice cream. The Marionberry was developed at Oregon State University in the 1940s and named after Marion County; it is larger, juicier, and more intensely flavored than a standard blackberry, and Oregonians guard it like a family secret. It is the taste of a Pacific Northwest summer.

Why this recipe works: Marionberries are so juicy they need little help: tossed with sugar, a squeeze of lemon, and a little cornstarch, they bake into a deep purple, jammy filling with that signature sweet-tart punch. A drop-biscuit topping — crisp at the edges, tender within — soaks up the berry syrup without turning to mush. Cold ice cream over warm berries is non-negotiable.

Key ingredients

• Marionberries: fresh in season; frozen Oregon marionberries work beautifully year-round.
• Sugar and a squeeze of lemon: to balance the tartness.
• Cornstarch: to set the juices.
• Butter: in the fruit and the biscuits.
• A drop-biscuit topping: flour, butter, sugar, milk, and baking powder.

Tips for the best marionberry cobbler

If using frozen berries, do not thaw them first — add them frozen and extend the baking time by 10 minutes. Toss the berries with sugar, lemon, and cornstarch, and let them sit while you make the topping. Drop the biscuit dough over the fruit in rustic spoonfuls. Bake at 375°F until the filling bubbles thickly and the biscuits are deep golden, 35 to 45 minutes. Rest for 10 minutes before serving — the filling is molten straight from the oven.

Variations and storage

Mix marionberries with raspberries or blackberries, add a pinch of cinnamon, or swap the biscuit topping for a pour-batter crust. Cobbler is best the day it is made; leftovers keep 2 days in the fridge and reheat well in the oven.

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