A rustic bowl of colcannon with creamy mashed potatoes, tender cabbage, and green onions, finished with a melted butter pool in the center.
Colcannon is the coziest side dish you can make with potatoes. You get creamy mashed potatoes, tender cabbage, and green onions in every bite. This colcannon tastes like a holiday side, but it’s easy enough for weeknights—and yes, everyone goes back for seconds.
Introduction
If you love mashed potatoes, colcannon is the next level. It’s buttery, comforting, and it has just enough cabbage to add a little sweetness and texture without feeling too green.
The standout trick is warming the milk and butter before mixing. That helps the potatoes stay fluffy and creamy instead of gluey. Trust me, don’t skip this step… it’s the difference between good mashed potatoes and wow mashed potatoes.
This colcannon is a fan-favorite for gatherings because it’s familiar, but a little special. It’s perfect with stew, roasted meat, or a simple weeknight chicken dinner.
Why You’ll Love This Colcannon
- Ultimate comfort food: Creamy mashed potatoes with buttery cabbage.
- Easy weeknight side: Simple ingredients and straightforward steps.
- Great for gatherings: A cozy holiday-style side dish everyone loves.
- Family-friendly: Mild, savory flavors with a little veggie boost.
- Make-ahead friendly: Reheats well with a splash of milk.
Ingredients for Colcannon
Potatoes
- Russet potatoes, peeled and cut into chunks (3 pounds) – fluffy mash; Yukon Gold also works for a creamier texture.
- Salt (1 tablespoon for boiling water) – seasons potatoes from the inside.
Cabbage Mix
- Green cabbage, thinly sliced (4 cups) – sweet and tender when cooked; kale works too, but it’s stronger.
- Green onions, sliced (1 cup) – mild onion flavor; chives work as a swap.
- Unsalted butter (6 tablespoons) – rich flavor; use 4 tablespoons if you want it lighter.
- Milk (3/4 cup) – creamy texture; half-and-half works for extra richness.
- Salt (1 teaspoon, then to taste) and black pepper (1/2 teaspoon) – adjust at the end.
Helpful note: Pre-warmed milk and butter blend in smoothly and keep the potatoes fluffy.
Colcannon Recipe Step-by-Step
- 1. Boil: Add potatoes to a large pot and cover with cold water. Add 1 tablespoon salt. Bring to a boil, then simmer 15–18 minutes, until a fork slides in easily.
- 2. Warm: While potatoes cook, warm milk and 4 tablespoons butter in a small saucepan over low heat until butter melts. Keep it warm (don’t boil).
- 3. Sauté: In a skillet over medium heat, melt remaining 2 tablespoons butter. Add cabbage and cook 6–8 minutes, stirring, until soft and lightly sweet. Stir in green onions for 1 minute.
- 4. Mash: Drain potatoes well and return them to the hot pot. Mash until mostly smooth.
- 5. Mix: Pour in warm milk-butter mixture and mash until creamy. If it looks too thick, add a splash more warm milk until fluffy.
- 6. Fold: Stir in cooked cabbage and green onions. Taste and add salt and pepper as needed.
- 7. Serve: Spoon into a bowl, make a little dip in the center, and add a small pat of butter. My family always goes back for seconds.
Tips for Perfect Colcannon
- Start potatoes in cold water so they cook evenly.
- Drain really well so the mash isn’t watery.
- Use warm milk and butter for the fluffiest texture.
- Cook cabbage until tender and sweet, not crunchy.
- If it thickens after sitting, stir in a splash of warm milk.
Variations & Substitutions
- Kale version: Swap cabbage for chopped kale (cook 2–3 minutes longer).
- Extra creamy: Use half-and-half instead of milk.
- Garlic: Add 2 minced garlic cloves when cooking cabbage.
- Lighter: Use 4 tablespoons butter total and more milk as needed.
- Leftovers: Turn into potato cakes by pan-searing patties until golden.
Make-Ahead & Freezing
Fridge: Store in an airtight container 3–4 days.
Reheat: Warm on the stove over low heat with a splash of milk, stirring until creamy.
Freezer: Freeze up to 1 month. Thaw overnight and reheat with extra milk (texture may soften slightly).
Serving Suggestions & Pairings
- With hearty soup or stew
- Alongside roasted chicken pieces or beef
- With sautéed vegetables for a cozy plate
- As a holiday-style side dish for gatherings
Recipe Card
Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Yield: 8 servings
Category: Side Dish
Method: Stovetop
Cuisine: Irish
Diet: Vegetarian
Reader Review: I made this for a family dinner and everyone asked for the recipe. The cabbage makes it extra cozy without feeling heavy.
If you make this colcannon, please leave a rating and comment. Do you like yours extra buttery or extra green onions?