Creamy Smashed Potato Gratin

Featured in: Savory Bites

This dish showcases layers of lightly smashed Yukon Gold potatoes roasted until golden and crisp, then baked in a luscious cream sauce infused with garlic, thyme, rosemary, and nutmeg. Melted Gruyère, mozzarella, and Parmesan cheeses add a rich, gooey texture that complements the crispy edges perfectly. Garnished with fresh chives or parsley, it offers an indulgent twist on classic gratins, ideal as a side for roasted meats or a comforting vegetarian option. Preparation is straightforward, requiring baking and gentle handling to maintain texture and flavor balance.

Updated on Sun, 15 Feb 2026 13:11:22 GMT
Creamy Smashed Potato Gratin with golden, crispy potatoes baked in rich cream and melted cheese. Save
Creamy Smashed Potato Gratin with golden, crispy potatoes baked in rich cream and melted cheese. | cravebop.com

Transform your dinner table with this Creamy Smashed Potato Gratin, a decadent twist on a beloved French classic. This recipe swaps traditional thin slices for golden, crispy smashed potatoes, creating a unique texture that perfectly captures the rich cream and melted cheese. Infused with aromatic garlic, thyme, and rosemary, it is the ultimate side dish for those seeking comfort and elegance in every bite.

Creamy Smashed Potato Gratin with golden, crispy potatoes baked in rich cream and melted cheese. Save
Creamy Smashed Potato Gratin with golden, crispy potatoes baked in rich cream and melted cheese. | cravebop.com

The secret to this dish is the high-heat roasting of the smashed potatoes before they are layered with the sauce. This step ensures that the potatoes maintain their structure and crunch even after being bathed in the luxurious herb-infused cream. It is a foolproof way to bring gourmet flair to a humble staple like the Yukon Gold potato.

Ingredients

  • Potatoes: 1.5 kg (3.3 lbs) small Yukon Gold or baby potatoes, 1 tbsp olive oil, salt, and freshly ground black pepper.
  • Cream Mixture: 1 1/2 cups (360 ml) heavy cream, 2 cloves minced garlic, 1 tsp fresh thyme leaves (or 1/2 tsp dried), 1/2 tsp finely chopped fresh rosemary, 1/2 tsp ground nutmeg.
  • Cheeses: 1 cup (100 g) grated Gruyère, 1 cup (100 g) grated mozzarella, 1/2 cup (50 g) grated Parmesan.
  • Garnish: 2 tbsp chopped fresh chives or parsley.
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Instructions

1. Preheat and Boil
Preheat the oven to 220°C (425°F) and line a large baking sheet with parchment paper. Boil the whole potatoes in salted water until fork-tender, about 15–18 minutes.
2. Smash and Roast
Drain the potatoes and transfer them to the baking sheet. Use a potato masher or the bottom of a glass to gently smash each potato to 1 cm (1/2 inch) thick. Drizzle with olive oil, season with salt and pepper, and roast for 20 minutes until golden.
3. Infuse the Cream
In a small saucepan over low heat, combine the heavy cream, garlic, thyme, rosemary, and nutmeg. Heat gently until warmed and fragrant; do not let it boil.
4. Layer the Gratin
Arrange half the roasted smashed potatoes in a buttered baking dish. Pour over half the cream mixture and sprinkle with half of the Gruyère, mozzarella, and Parmesan.
5. Final Bake
Add the remaining potatoes, top with the rest of the cream and cheeses, and bake at 220°C (425°F) for 20–25 minutes until bubbly and brown.
6. Rest and Serve
Let the dish rest for 10 minutes before garnishing with fresh chives or parsley and serving.

Zusatztipps für die Zubereitung

To get the best results, ensure your potatoes are relatively uniform in size so they boil and roast evenly. When smashing them, try to keep the potato intact rather than pulverizing it, as this creates the best surface for the cheese to cling to. Using a flat-bottomed glass often provides more control than a standard masher.

Varianten und Anpassungen

For extra depth, you can layer in caramelized onions or sautéed mushrooms between the potatoes. If you prefer a different cheese profile, swap Gruyère for Emmental or use Fontina instead of mozzarella. For a slightly lighter version, you can substitute half-and-half for the heavy cream, though the final sauce will be less thick.

Serviervorschläge

This luxurious gratin is a fantastic accompaniment to roasted meats such as beef tenderloin, roast chicken, or lamb chops. For a complete vegetarian meal, serve a generous portion alongside a crisp green salad with a sharp vinaigrette to cut through the richness of the cheese and cream.

Decadent layers of smashed potatoes, Gruyère, and mozzarella in a bubbling, herb-infused cream sauce. Save
Decadent layers of smashed potatoes, Gruyère, and mozzarella in a bubbling, herb-infused cream sauce. | cravebop.com

With its bubbling cheese crust and herb-scented interior, this Creamy Smashed Potato Gratin is sure to become a repeat favorite. It offers a wonderful balance of rustic charm and culinary sophistication. Enjoy sharing this decadent dish with your friends and family!

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Recipe Guide

What type of potatoes work best?

Small Yukon Gold or baby potatoes are ideal for their creamy texture and ability to hold shape when smashed.

How do you achieve the crispy edges?

Roasting the smashed potatoes with olive oil at high heat before layering helps develop golden, crispy edges.

Can I substitute the cheeses?

Yes, Gruyère can be replaced with Emmental and mozzarella with Fontina without sacrificing flavor.

Is it possible to prepare this ahead of time?

You can assemble the layers in advance and refrigerate, then bake just before serving to maintain freshness.

What herbs enhance the flavor?

Fresh thyme, rosemary, and chives add fragrant notes that complement the creamy and cheesy components.

Creamy Smashed Potato Gratin

Golden smashed potatoes topped with creamy, cheesy layers and fresh herbs for a decadent side.

Prep duration
20 min
Cook duration
50 min
Complete duration
70 min
Created by Lindsey Carter

Style Savory Bites

Skill level Medium

Heritage French

Output 6 Portions

Nutrition labels Meat-free, No gluten

What you'll need

Potatoes

01 3.3 lbs small Yukon Gold or baby potatoes
02 1 tablespoon olive oil
03 Salt and freshly ground black pepper to taste

Cream Mixture

01 1.5 cups heavy cream
02 2 cloves garlic, minced
03 1 teaspoon fresh thyme leaves or 0.5 teaspoon dried
04 0.5 teaspoon fresh rosemary, finely chopped
05 0.5 teaspoon ground nutmeg

Cheeses

01 1 cup Gruyère cheese, grated
02 1 cup mozzarella cheese, grated
03 0.5 cup Parmesan cheese, grated

Garnish

01 2 tablespoons fresh chives or parsley, chopped

Method

Phase 01

Preheat oven: Preheat oven to 425°F. Line a large baking sheet with parchment paper.

Phase 02

Cook potatoes: Place whole potatoes in a large pot, cover with salted water, and bring to a boil. Cook until fork-tender, 15 to 18 minutes.

Phase 03

Prepare smashed potatoes: Drain potatoes and let cool slightly. Transfer to the prepared baking sheet. Use a potato masher or the bottom of a glass to gently smash each potato to approximately 0.5 inch thick.

Phase 04

First roasting: Drizzle smashed potatoes with olive oil and season generously with salt and pepper. Roast in the oven for 20 minutes, or until edges are crisp and golden.

Phase 05

Infuse cream mixture: In a small saucepan over low heat, combine heavy cream, garlic, thyme, rosemary, and nutmeg. Heat gently until just warmed and fragrant; do not boil.

Phase 06

Layer first potatoes and cream: Arrange half the roasted smashed potatoes in a buttered baking dish. Pour over half of the cream mixture and sprinkle with half the Gruyère, mozzarella, and Parmesan.

Phase 07

Complete layering: Layer the remaining potatoes, then top with the rest of the cream and cheeses.

Phase 08

Final baking: Bake in the oven at 425°F for 20 to 25 minutes, or until bubbly and golden brown on top.

Phase 09

Rest and finish: Let rest for 10 minutes before garnishing with fresh herbs and serving.

Tools needed

  • Large pot
  • Potato masher or glass
  • Baking sheet
  • Parchment paper
  • Saucepan
  • Baking dish
  • Grater

Allergy alerts

Always review ingredients for potential allergens and seek professional medical advice if uncertain.
  • Contains milk from cream and cheeses
  • May contain traces of gluten if processed cheeses are used—verify product labels
  • Not suitable for those with dairy allergies

Nutrition breakdown (per portion)

Values shown are estimates only - consult healthcare providers for specific advice.
  • Energy: 390
  • Fats: 25 g
  • Carbohydrates: 34 g
  • Proteins: 10 g