Champ (Irish Mashed Potato with Scallion)

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Introduction

Champ is a traditional Irish side dish that transforms mashed potatoes into something richer by infusing the milk with scallions, then stirring both back into the potatoes. You boil, mash, and finish with a pool of melted butter in the center—it’s straightforward enough for a weeknight but substantial enough to anchor a meal.

Recipe Details

• Prep Time: 10 minutes
• Cook Time: 20 minutes
• Total Time: 30 minutes
• Servings: 2

Ingredients

• 1 lb (450 g) potatoes, peeled
• 2 oz (60 g) scallions
• ¼ pint (½ cup) milk
• Freshly-ground pepper
• Salt (optional)
• 4 tbsp butter

Instructions

1. Boil potatoes in water until done.
2. Drain the potatoes and mash them.
3. Pour the milk into a saucepan, add the chopped scallions and cook vigorously.
4. When cooked, sieve the scallions and set the milk aside.
5. Add the scallions to the potatoes and mix well.
6. Add as much of the scallion-infused milk as possible to make a ‘wet’ soft mixture.
7. Season with freshly ground pepper and salt.
8. Serve with a central well filled with melted butter.

Variations

With cream: Replace half the milk with heavy cream for a richer, more luxurious texture that still stays authentic to the dish.

With garlic: Add 2–3 cloves of minced garlic to the saucepan with the scallions for a sharper, more savory note.

With chives: Use fresh chives instead of scallions for a milder onion flavor and a more delicate finish.

With butter in the mix: Stir 2 tbsp of butter directly into the mashed potatoes before adding the scallion milk, then serve the remaining butter in a well as directed.

With leeks: Substitute an equal weight of sliced leeks for the scallions and cook them the same way—leeks will give a sweeter, deeper flavor.

Tips for Success

Don’t skip the vigorous cooking step. Cooking the scallions hard in the milk extracts their flavor fully and softens them enough to sieve cleanly; a gentle simmer won’t develop the same depth.

Keep the mixture wet. Champ should be loose and creamy, not stiff like mashed potatoes you might serve elsewhere; add milk generously until it flows slightly when you stir it.

Mash while potatoes are still hot. Warm potatoes break down more easily and absorb the scallion milk more evenly, giving you a smoother final texture.

Use floury potatoes, not waxy ones. Russets or Yukon Golds work better than new potatoes; they mash to a fluffier consistency and hold the milk without becoming gluey.

Storage and Reheating

FAQ

Can I prepare this ahead of time?

Peel and boil the potatoes up to a few hours before serving, then cover and set aside. Chop the scallions and measure the milk in advance as well. Finish the mashing and assembly just before you plan to serve.

What if my potatoes turn out gluey instead of fluffy?

You’ve likely overworked the potatoes or used a waxy variety. For next time, mash just until combined—don’t beat them—and choose a starchy potato. If it happens now, add a bit more milk and scallion flavor to adjust the texture, though you can’t fully reverse it.

Why sieve the scallions instead of leaving them in the milk?

Sieving gives you tender scallion pieces to stir into the potatoes while keeping the milk smooth and evenly flavored. If you leave the scallions in the milk, you’ll end up with large pieces that don’t distribute evenly and milk that’s harder to pour.

Can I use a different herb instead of scallions?

Leeks, garlic, chives, or even finely sliced onions work well using the same cooking method. Avoid delicate herbs like parsley or cilantro—they’ll lose flavor and turn dark when cooked vigorously in the milk.