Heat olive oil (2 tbsp) in a pot over medium-high. Add mushrooms (1 lb) with a pinch of salt and cook 8-10 minutes until browned and most moisture is gone.

Brown mushrooms first or the whole dish tastes flat. • Dark edges and dry-looking pan bottom • Nutty roasted mushroom aroma

Add onion (1 whole) and cook 3-4 minutes until softened. Add garlic (3 cloves) and cook 30 seconds until fragrant.

Garlic goes in late so it perfumes instead of bittering. • Onion translucent, garlic disappears into the mix • Garlic aroma blooms

Stir in barley and toast 2 minutes until it smells nutty.

Toasting starts flavor and helps the starch release more cleanly. • Grains look lightly glossy with oil • Toasty grain aroma

Add 1 cup hot broth and stir until mostly absorbed. Continue adding broth 1/2-1 cup at a time, stirring occasionally, until barley is tender and creamy, 30-35 minutes.

You’re not flooding the pot—you’re reducing broth into starch for creaminess. • Liquid reduces into a cohesive, shiny base • Warm, savory aroma deepens

Remove from heat. Stir in pepper, a drizzle of olive oil (2 tbsp), Parmesan (if using), and lemon juice (1 tsp) (if using). Taste and adjust salt.

Finish is where the dish becomes luxurious—oil or cheese plus acid if needed. • Risotto looks glossy and cohesive • Bright finish lifts the mushrooms