Colcannon with Scallions and Butter

By Lauren Mitchell, Test Kitchen Director · Reviewed by AislePrompt Editorial · Published 2026-04-22 · Updated 2026-04-22

A creamy mash of potatoes and cabbage with fresh scallions, finished with rich butter for a comforting side dish. This irish-inspired vegetarian ready in about 35 minutes pairs Potatoes, head Cabbage, Scallions for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 210 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 2 lbs Potatoes
• 1/2 head Cabbage
• 4 Scallions
• 4 tbsp Butter
• 1/4 cup Heavy cream
• 1 tsp Salt
• 1/2 tsp Black pepper

Instructions

1. Step 1: Peel and dice 2 lbs potatoes into 1-inch cubes, then boil in salted water for 15-18 minutes until fork-tender. Meanwhile, shred 1/2 head cabbage into thin strips and cook in a skillet with 1 tbsp butter over medium heat for 5 minutes until wilted.
2. Step 2: Drain the potatoes, reserving 1/4 cup cooking water. Return the potatoes to the pot and mash with 1/4 cup heavy cream, 1 tsp salt, and 1/2 tsp black pepper until smooth. Add the cooked cabbage and 4 tbsp melted butter, then stir until fully incorporated.
3. Step 3: Finely chop 4 scallions and stir into the mashed potatoes until evenly distributed. Adjust seasoning with additional salt and pepper if needed, then serve warm.