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ROASTED ONION AND THYME BROTH

A Simple Irish Comfort Soup

Description: Roasted Onion & Thyme Broth is a light yet deeply flavourful Irish-style soup made by slowly roasting onions until caramelised, then simmering them with fresh thyme. Simple, warming, and restorative, it’s perfect as a starter or a soothing winter bowl.

Preparation Time: 15 minutes
Cooking Time: 1 hour 10 minutes
Serving Size: Serves 4

Ingredients

  • 4 large onions, thickly sliced
  • 2 tbsp olive oil or butter
  • 1 litre vegetable or light chicken stock
  • 2–3 sprigs fresh thyme (or 1 tsp dried thyme)
  • 1 bay leaf
  • Salt and black pepper, to taste
  • Optional: splash of cider vinegar or white wine
  • Optional for serving: toasted bread or grated Irish cheddar

Instructions

Step 1 – Roast the Onions

Preheat oven to 200°C (400°F). Toss the sliced onions with oil or butter and spread on a baking tray. Roast for 35–40 minutes, turning once, until deeply golden and caramelised.

Step 2 – Simmer the Broth

Transfer the roasted onions to a pot. Add stock, thyme, and bay leaf. Bring to a gentle simmer and cook for 20–25 minutes to allow flavours to develop.

Step 3 – Adjust and Finish

Remove thyme stems and bay leaf. Taste and season with salt and pepper. Add a small splash of cider vinegar or white wine if desired for brightness.

Step 4 – Serve

Ladle into bowls and serve hot. Top with toasted bread or a little grated Irish cheddar if preferred.

Tips

  • Deeper flavour: Roast onions until well caramelised for a richer broth.
  • Clear broth: Strain for a lighter presentation if desired.
  • Herb balance: Fresh thyme gives the best aroma.
  • Make ahead: Keeps well in the fridge for up to 3 days.

Serving Suggestion

Serve with Irish brown bread or alongside a simple cheese board for a light meal.