Ingredients:
- 750 g / 1.5 lbs Pearl Onions (White or Red, approximately 3 cups, peeled)
- Water (Enough to cover the onions)
- 1 teaspoon (5 g) Salt
- 4 tablespoons (60 g / 1/4 cup) Unsalted Butter
- 4 tablespoons (30 g / 1/4 cup) All-Purpose Flour (Plain Flour)
- 360 ml / 1.5 cups Whole Milk (Full-Fat)
- 120 ml / 1/2 cup Heavy Cream (Double Cream)
- 1/2 teaspoon (2.5 g) Salt, or to taste
- 1/4 teaspoon Freshly Ground Black Pepper
- 1/8 teaspoon Freshly Grated Nutmeg (essential for flavour)
- 1 tablespoon Fresh Parsley, chopped (flat-leaf preferred)
Instructions:
- Prep the Onions: Bring a pot of water to a rolling boil. Drop the pearl onions (unpeeled) into the boiling water for 60 seconds (blanching). Immediately drain and plunge them into a large bowl of iced water to stop cooking.
- Peel: Once cool enough to handle, use a small knife to trim the root and stem ends. The skin should now easily slip off.
- Simmer: Place the peeled onions and 1 tsp of salt in the medium saucepan. Cover with fresh water. Bring to a simmer, then reduce heat to low, cover, and cook for 20–25 minutes, or until the onions are fork-tender but still hold their shape.
- Drain: Drain the cooked onions thoroughly and set them aside.
- Start the Roux: Return the empty saucepan to medium heat. Melt the butter until it foams. Whisk in the flour thoroughly until a smooth paste (the roux) forms.
- Cook the Roux: Continue stirring for 1–2 minutes to gently cook out the raw flour taste. Do not allow the roux to brown; it should remain pale blonde.
- Add Liquid: Gradually whisk in the cold whole milk, pouring slowly to incorporate the roux without forming lumps. Continue whisking constantly until the sauce is smooth and lump-free.
- Thicken and Season: Bring the sauce to a gentle simmer, stirring occasionally. It will thicken considerably. Remove from the heat and stir in the heavy cream, salt, pepper, and freshly grated nutmeg. Taste and adjust seasoning as needed.
- Combine: Gently fold the reserved, cooked pearl onions into the warm cream sauce. Be careful not to mash the onions.
- Reheat: Return the saucepan to very low heat and simmer gently for 5 minutes, allowing the onions to fully warm through and the flavours to meld. If the sauce becomes too thick, add a splash more milk.
- Serve: Transfer the creamed onions to a serving dish. Garnish with fresh chopped parsley just before serving.