Cheesy Hasselback Potato Gratin
Thinly sliced, fan-cut potatoes baked in a creamy, garlicky sauce with plenty of melty cheese. Golden, crisp edges meet a luxuriously tender center.
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Servings:
Ingredients
Main Ingredients
- 3 lb Yukon Gold potatoes, scrubbed medium potatoes work best
- 1.5 cup heavy cream
- 0.5 cup whole milk
- 2 tbsp unsalted butter, melted
- 1 tbsp minced garlic
- 2 tsp fresh thyme leaves, chopped
- 1 tsp Dijon mustard
- 1.5 tsp kosher salt
- 1 tsp black pepper, freshly ground
- 0.5 tsp smoked paprika optional
- 2 cup Gruyère cheese, shredded
- 0.5 cup Parmesan cheese, finely grated
- 1 tsp unsalted butter, for greasing
- 2 tbsp chives, thinly sliced for serving
Instructions
Preparation Steps
- Heat oven to 400°F. Butter a 9×13-inch baking dish.
- Hasselback the potatoes: set two chopsticks alongside each potato and slice crosswise into thin cuts without cutting through.
- Fan the slices gently. Stand the potatoes upright in tight rows in the dish, tucking end pieces into gaps.
- Warm cream, milk, melted butter, garlic, thyme, mustard, salt, pepper, and paprika in a saucepan until steaming. Do not boil.
- Pour about half the hot cream mixture over the potatoes. Wiggle the rows so it seeps between slices.
- Cover the dish tightly with foil and bake 30–35 minutes, until the potatoes start to soften.
- Uncover. Pour the remaining cream mixture over the potatoes. Sprinkle all the Gruyère and Parmesan evenly, nudging some between slices.
- Bake uncovered 25–30 minutes, until tender, bubbling, and golden on top.
- Broil 1–2 minutes for extra color if desired, watching closely.
- Rest 10 minutes to set. Shower with chives and serve warm.
Notes
Swap the Gruyère for smoked gouda or sharp cheddar, or fold in crisp bacon between slices before the final bake. For make-ahead, assemble through the first covered bake, cool, then refrigerate up to 24 hours; finish baking with cheese just before serving. Leftovers reheat well, covered, at 350°F for about 15 minutes.
This recipe is an original creation inspired by classic Cheesy Hasselback Potato Gratin flavors. All ingredient ratios and instructions are independently developed.