
Potatoes Au Gratin
8 servings
Ingredients
- 12 large new potatoes, thinly sliced on a mandolin
- 4 tbsp Lactantia unsalted butter
- ½ cup white onion, diced
- 2 garlic cloves, minced
- 4 tbsp all-purpose flour
- 2 cups Lactantia PurFiltre 2% milk
- 1 cup Lactantia 35% cooking cream
- 2 ½ cups Black Diamond Old Coloured Cheddar Cheese Block, shredded and divided
- 2 tbsp fresh thyme, picked + more for garnish
- Salt and pepper, to taste
Directions
Safety & Prep:
- Wash hands thoroughly and sanitize all work surfaces.
- Use the proper color-coded cutting board for each ingredient type.
- Preheat oven to 375°F.
Make the Cheese Sauce:
- In a medium saucepan over medium heat, melt the butter. Add garlic and onion; cook until translucent, about 3–4 minutes.
- Stir in the flour and cook until the roux is golden brown, about 1–2 minutes.
- Reduce heat to low and slowly whisk in the milk to avoid lumps. Increase heat to medium, add the cream, and bring to a gentle simmer.
- Remove from heat once thickened and stir in 1 ½ cups of cheddar cheese and the thyme leaves. Season with salt and pepper.
Assemble:
- In a large bowl, toss the potatoes with the cooled cheese sauce until evenly coated.
- Arrange the potatoes upright (accordion style) in 12 individual ramekins.
- Sprinkle each with ¼ cup of the remaining cheddar cheese.
Bake & Serve:
- Bake for 35 minutes, or until potatoes are tender and cheese is melted and golden.
- Optional next-day step: Bake without cheese topping on day 1. Cover and refrigerate overnight. The next day, top with the remaining cheese and bake at 400°F for 15 minutes until bubbly and golden.
- Remove from oven and garnish with fresh thyme.
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