Rosemary Onion Focaccia

Onion and rosemary focaccia is one of those breads that earns the kitchen-time investment with every bite. The signature dimpled top, made by pressing fingertips into the risen dough, traps olive oil into pockets that turn crackly-golden in the oven. Sweet onions and fresh rosemary crown the surface, perfuming the whole loaf.

Soaking the sliced onions in cold water before sautéing is the technique that separates a great focaccia from a merely good one. The cold soak pulls out the harsh sulfur compounds that make raw onion sharp and bitter; what’s left is sweet, mellow flesh that caramelizes beautifully when you cook it. Skip this and the onions taste pungent against the bread.

The two rises matter. First rise develops yeast flavor and gluten structure; the second rise (after rolling out and dimpling) gives the focaccia its airy, open interior. Rushing either stage gives you a dense flatbread instead of the cloud-like texture that defines the loaf.

Dimpling the dough firmly with your fingers is what creates focaccia’s signature look. Press straight down through to the bottom of the pan, leaving deep wells. Drizzle olive oil across the surface so it pools in those wells, then in the oven, the oil fries the dough from the top down, creating crispy bronzed peaks against the soft interior.

Use generous amounts of olive oil throughout. This is not the bread to skimp; oil is what defines focaccia.

Pro Tips

• Use a high-quality extra-virgin olive oil for the topping. The oil flavor shines through and a cheap one tastes flat.
• Bake on the bottom rack for the crispiest bottom crust.
• A pizza stone or steel preheated under the pan dramatically improves the bottom crust.
• Sprinkle the kosher salt only after dimpling so it sits in the oil-filled wells, not on the dry parts of the dough.

Variations

• Swap onions for halved cherry tomatoes and pitted olives for a Mediterranean version.
• Add 2 tablespoons of fresh thyme leaves alongside the rosemary for a more herb-forward loaf.
• Sprinkle with grated Parmesan in the last 10 minutes of baking for a savory cheesy crust.