Mushroom and barley risotto

Pearl barley gives this mushroom risotto a pleasantly chewy finish.

This recipe makes 4 servings and takes about 15 minutes to prepare plus 45 minutes to cook. Metric and imperial quantities are alternate measurements, so use one system rather than adding both. If you change the yield, keep the pan size and thickness of the food in mind: a crowded pan steams food and a deep baking dish can extend the cooking time.

Equipment

Set out lidded casserole, wooden spoon, ladle, grater. A wide pan gives moisture somewhere to evaporate; for an oven dish, leave space between pieces so heat can circulate. Use separate board and knife surfaces for raw protein and foods that will be eaten without further cooking.

Ingredients

You will need: pearl barley: 300 g (10½ oz); mixed mushrooms, sliced: 450 g (1 lb); leek, finely sliced: 200 g (7 oz); olive oil: 15 ml (1 tbsp); garlic, crushed: 9 g (3 cloves); hot vegetable stock: 1.2 litres (5 cups); fresh thyme leaves: 5 g (1 tbsp); Parmesan, grated: 50 g (1¾ oz). Gather the ingredients before heating the pan so the aromatics do not burn while a measurement is being found.

• pearl barley — 300 g / 10½ oz
• mixed mushrooms, sliced — 450 g / 1 lb
• leek, finely sliced — 200 g / 7 oz
• olive oil — 15 ml / 1 tbsp
• garlic, crushed — 9 g / 3 cloves
• hot vegetable stock — 1.2 litres / 5 cups
• fresh thyme leaves — 5 g / 1 tbsp
• Parmesan, grated — 50 g / 1¾ oz

Method

Read the full method once, then prepare the ingredients in the order listed. Keep raw and ready-to-eat ingredients separate, and wash hands and equipment after raw-protein contact.

Step 1

Heat olive oil in a casserole and cook leek for 6 minutes until soft. Add garlic and thyme for 30 seconds.

Step 2

Add mixed mushrooms and cook until browned and their moisture has evaporated.

Step 3

Stir in pearl barley, then add hot vegetable stock. Cover and simmer gently for 35 to 40 minutes, stirring twice, until the barley is tender but still has bite.

Step 4

Stir in Parmesan and rest for 3 minutes with the lid on so the liquid becomes creamy.

Step 5

Serve hot; the barley should be tender, not hard at the centre.

Cooking and safety check

Maintain a steady simmer and ensure the barley is fully tender before serving. A time estimate and a browned surface do not prove that the centre is cooked. Use a suitable food thermometer where the ingredient or local guidance requires one, and follow the package or official instructions for the specific food.

Substitutions that respect the dish

A substitution should preserve the recipe’s job, not merely its colour. Use 300 g (10½ oz) farro for pearl barley; it contains gluten. Use a dairy-free hard-cheese alternative for Parmesan; check ingredients for allergens. Replace leek with 200 g (7 oz) onion.

• Use 300 g (10½ oz) farro for pearl barley; it contains gluten.
• Use a dairy-free hard-cheese alternative for Parmesan; check ingredients for allergens.
• Replace leek with 200 g (7 oz) onion.

Allergen notes

This recipe contains or may contain milk, gluten, celery may be present in packaged stock. Check every packaged ingredient because formulations and cross-contact warnings vary.

Common mistakes and how to correct them

Use one troubleshooting change at a time. If the centre is undercooked, return it to the appropriate heat and check again rather than relying on the outside colour. If the pan is dry, add liquid gradually; if it is watery, reduce uncovered. Texture may also reflect crowded equipment, a different ingredient size, or a changed batch quantity.

• Add more hot vegetable stock if the barley dries before becoming tender.
• Brown the mushrooms before adding stock for a fuller flavour.
• Avoid vigorous stirring, which can break the barley grains.

Leftovers and storage

Cool promptly and refrigerate for up to three days. Reheat with 60 ml (¼ cup) vegetable stock per portion until steaming hot.

Serving ideas

These sides and finishes suit mushroom and barley risotto without changing the recipe itself.

• Rocket with lemon
• Roasted carrots
• A crisp apple salad

Frequently asked questions

Does pearl barley need soaking?

No; it cooks directly in the casserole, though cooking time can vary slightly.

Can I freeze it?

Yes, freeze cooled portions for up to one month and thaw before reheating.

Related recipes and tools

Browse the related recipes for a different appliance, pace, or ingredient pairing. Use the serving scaler only after checking the stated yield, and use the storage guide before deciding whether to save a portion. Related links help with the next decision; they do not make this recipe suitable for every diet or kitchen.