Sweet Potato Colcannon with Sausage and Onion Gravy

Prep: 15 minCook: 50 min4 servingsmediumBritish
Sweet Potato Colcannon with Sausage and Onion Gravy

A hearty Irish-inspired comfort meal featuring creamy mashed sweet potatoes and cabbage (colcannon) topped with savory sausages in rich onion gravy. The sweet potatoes add a subtle sweetness that pairs beautifully with the caramelized onions and your choice of sausage. Steamed broccoli with lemon and green onions provides a fresh contrast. Perfect for cold evenings when you want something filling and warming. This version uses sweet potatoes instead of traditional white potatoes for extra flavor and nutrition.

Ingredients

4 servings
  • 1 lb sweet potatoes, peeled and cubed
    regular potatoes1:1traditional

    more traditional Irish colcannon

    Full guide →
  • 8 oz cabbage, green, chopped
    kale1:1greens

    more nutritious, slightly different texture

  • ¼ cup stock, any type
  • 3 Tbsp butter
  • ½ onions, medium and red, sliced
  • 4 links sausage, use any type, pre-cooked or raw
    bratwurst1:1flavor

    adds German flavor profile

    Full guide →
  • 1 Tbsp oil, cooking
  • 2 Tbsp butter
  • 2 tsp arrowroot powder
    cornstarch1:1thickening

    works equally well as thickener

  • 1 ½ cups stock, any type
  • 12 oz broccoli, florets
  • 2 stalks green onions, chopped, green and white parts combined
  • 1 tsp lemon juice

Instructions

  1. 1

    Combine sweet potatoes and cabbage in a large saucepan and cover with salted water

  2. 2

    Cover and bring to a boil, then simmer uncovered for 12 to 15 minutes until potatoes are easily pierced

  3. 3

    Drain and let sit in colander for 5 minutes to let steam escape

  4. 4

    Heat large skillet over medium-high heat and add oil, onions, and sausage

  5. 5

    Cook stirring occasionally until onions are very tender and sausages start browning, about 8 minutes

  6. 6

    Remove sausage and set aside, leaving onions in pan

  7. 7

    Add butter to onions, when melted add arrowroot powder and stir for 1 minute

  8. 8

    Add stock while whisking and bring to a simmer

  9. 9

    Lower heat and simmer until gravy thickens, 4 to 6 minutes

  10. 10

    Return sausage to pan with gravy and toss to combine, season with salt

  11. 11

    Cover to keep warm

  12. 12

    Mash steamed potatoes and cabbage with stock and butter until creamy and smooth

  13. 13

    Add more stock if needed and season with salt and pepper

  14. 14

    Place broccoli in microwave safe bowl, cover with damp paper towel and steam for 4 to 5 minutes

  15. 15

    Season broccoli with salt, pepper, and lemon juice, then toss with green onions

  16. 16

    Serve sausage and gravy over colcannon with broccoli on the side

Tips

Tip 1

Let the drained potatoes and cabbage sit in the colander to release steam for creamier, less watery colcannon.

Tip 2

Use any type of stock you prefer - chicken, vegetable, or beef all work well in this recipe.

Tip 3

Cook the onions until very tender for the sweetest flavor in your gravy.

Good to Know

Storage

Refrigerate leftovers for up to 3 days. Store components separately if possible.

Make Ahead

Colcannon can be made 1 day ahead and reheated. Make sausage gravy fresh for best texture.

Serve With

Serve immediately while hot. Colcannon should be creamy and warm, gravy should coat the sausages.

Common Mistakes

Watch

Don't skip draining step or colcannon will be watery instead of creamy.

Watch

Don't let gravy boil vigorously or it may break and become lumpy.

Substitutions

sweet potatoes
regular potatoes1:1traditional

more traditional Irish colcannon

Full guide →
arrowroot powder
cornstarch1:1thickening

works equally well as thickener

Full guide →
any sausage
bratwurst1:1flavor

adds German flavor profile

cabbage
kale1:1greens

more nutritious, slightly different texture

Full guide →
Find more substitutions →

FAQ

Can I make this ahead of time?

The colcannon can be made a day ahead and gently reheated with a splash of stock. Make the sausage and gravy fresh for best results.

What type of sausage works best?

Any sausage works - Italian, bratwurst, kielbasa, or breakfast sausage. Choose based on your flavor preference and what you have available.

Can I freeze the leftovers?

The colcannon freezes well for up to 3 months. The sausage and gravy are best enjoyed fresh but can be frozen for 1 month.