Creamy Cheesy Gratin

Featured in Veggie meals full of flavor.

Delmonico potatoes are a homely American favorite combining tender potatoes, a luscious cheddar sauce, and flavorful spices. Plan ahead for best results.
Maria from tastyhush
Updated on Sun, 30 Mar 2025 14:05:28 GMT
Golden cheesy potato gratin topped with parsley and a crispy crust. Pin it
Golden cheesy potato gratin topped with parsley and a crispy crust. | tastyhush.com

I stumbled upon Delmonico Potatoes during a trip to NYC and totally fell head over heels for this classic dish. Every time I make it, I'm whisked back to the cozy atmosphere of those fancy New York restaurants. The combo of the silky cream, light nutmeg, and melty cheese makes magic happen - it's always a hit when I serve it up!

A Tasty Time Travel Adventure

This isn't just any potato casserole. It takes you straight to 19th century New York with each bite. I whip it up for special get-togethers where the full-bodied cream and aged cheddar work wonders with that hint of nutmeg. My friends always bug me for the recipe after they've tried it.

From My Kitchen

  • Potatoes: 20 oz Simply Potatoes or some I've freshly grated myself
  • Milk: 3/4 cup organic whole milk
  • Cream: 3/4 cup fresh heavy cream
  • Salt: One teaspoon of my go-to kosher salt
  • Mustard: One teaspoon dry mustard powder
  • My spices: Freshly ground black pepper and grated nutmeg
  • Cheddar: One cup aged cheddar I grate right before using
  • Butter: 3 tablespoons unsalted butter
  • Paprika: A sprinkle for the finishing touch

My Step-by-Step Approach

Getting ready
First off, I butter my favorite dish really well. Then I spread out my grated potatoes into an even layer.
My signature sauce
I slowly warm up my mix of milk, cream, and spices. My kitchen starts smelling amazing from the nutmeg.
Cheese time
I turn down the heat and stir in my freshly grated cheddar until it's completely melted. The sauce gets super smooth and tempting.
Putting it together
I pour my sauce all over the potatoes, add little dots of butter, and sprinkle some paprika on top.
The chef's trick
I let my dish sit in the fridge overnight. That's really what makes all the flavors come together perfectly.
Baking it up
The next day I pop it in my preheated oven for about 45 minutes until it's golden and bubbling.

My Little Tricks

For big family gatherings, I make a double batch in my large baking dish. I sometimes switch up the cheeses with Swiss gruyere or aged parmesan. When I've got extra time, I hand-grate the potatoes myself which gives the dish an even more genuine feel.

Creamy potato gratin topped with melted cheese and parsley. Pin it
Creamy potato gratin topped with melted cheese and parsley. | tastyhush.com

For Later On

I keep leftovers in an airtight container in the fridge and they stay good for 2-3 days. To warm them up, I pop them in the oven at 175°C for about 15 minutes. I often freeze a portion too - it's so handy to have this fancy dish ready to go when I'm in a rush.

Frequently Asked Questions

→ Can you skip the fridge resting time?
Resting lets the flavors meld and the potatoes soak up the sauce. While you can skip it, it can change the final taste and texture.
→ What type of potatoes work best?
If Simply Potatoes aren't available, go for firm, fresh potatoes sliced thin. The texture will change slightly but still be delicious.
→ Can this dish be frozen?
Freezing isn't ideal since the creamy sauce might separate when thawed. Fresh preparation is recommended for the best experience.
→ What cheese works best here?
Aged cheddar adds the best depth of flavor. Avoid young cheddar for a less robust taste.
→ How do you know when it's done?
Check that the potatoes are soft when poked with a knife, with a golden top and a thickened sauce.

Creamy Potato Gratin

A creamy American potato dish with cheddar sauce. Great as a side for festive meals or cozy dinners.

Prep Time
20 Minutes
Cook Time
45 Minutes
Total Time
65 Minutes
By: Maria

Category: Vegetarian

Difficulty: Intermediate

Cuisine: American

Yield: 6 Servings (1 20x20 cm baked dish)

Dietary: Vegetarian, Gluten-Free

Ingredients

01 570 g of Simply Potatoes diced potatoes.
02 3/4 cup heavy cream.
03 3/4 cup milk.
04 1 teaspoon kosher salt.
05 1 teaspoon dry mustard powder.
06 Nutmeg and pepper to taste.
07 1 cup shredded cheddar cheese.
08 3 tablespoons of sliced butter.
09 A sprinkle of paprika.

Instructions

Step 01

Grease a 20x20 cm baking dish with plenty of butter. Spread the potatoes evenly across the bottom.

Step 02

Over medium heat, warm the milk, cream, salt, mustard, nutmeg, and pepper until well combined.

Step 03

Stir in the cheddar cheese and keep mixing until it completely melts.

Step 04

Pour the sauce over the potatoes and let it sit for a few minutes to cool slightly. Add the sliced butter and paprika on top.

Step 05

Cover the dish and pop it in the fridge for at least 12 hours or overnight.

Step 06

Preheat your oven to 175°C and bake it uncovered for 45 minutes.

Notes

  1. A classic dish in American cooking.
  2. Refrigerating overnight is key to bringing out the flavors.

Tools You'll Need

  • A 20x20 cm baking dish.
  • A saucepan.
  • Oven.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Dairy products.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 320
  • Total Fat: 22 g
  • Total Carbohydrate: 25 g
  • Protein: 8 g