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4.75 from 32 votes

Focaccia with Caramelized Onion, Tomato & Rosemary Recipe

This focaccia recipe, topped with caramelized onions and tomatoes, is inspired by a trip to Italy and a meeting with a kind-hearted Italian grandmother.
Prep Time2 hrs 20 mins
Cook Time20 mins
Total Time2 hrs 40 mins
Course: Breads
Cuisine: Italian
Keyword: Pizza Recipe
Servings: 8 Servings
Calories: 308kcal


  • 1 package dry yeast
  • 1 cup warm water
  • 1 teaspoon honey
  • 2 ½ cups all-purpose flour
  • 2 teaspoons kosher salt divided
  • ½ cup plus 1 tablespoon olive oil divided
  • 1 large onion thinly sliced
  • 1 medium tomato cut into ¼-inch slices
  • 2 sprigs fresh rosemary needles removed from stem
  • cup packed finely grated Parmesan cheese


  • In a medium bowl, stir together yeast, warm water, and honey. Let rest until yeast blooms and bubbles form on top, about 10 minutes.
  • Stir in flour, ¼ cup olive oil and 1 teaspoon kosher salt. Turn the dough onto a well-floured surface and knead until dough is smooth, 5 to 10 minutes.
  • Place dough in a lightly oiled bowl, cover with a kitchen towel or plastic wrap, and let rest in a warm place until dough doubles in size, about 1 hour.
  • Preheat oven to 450 degrees F.
  • Remove dough from bowl and press it into a lightly oiled 9- by 13-inch baking sheet until it touches the edges. Using your finger, poke holes all over the dough. Drizzle the dough with 2 tablespoons olive oil. Let rest until the dough becomes puffy, about 20 minutes.
  • Heat 1 tablespoon olive oil in a large skillet set over medium heat. Add onion slices, cover and cook until onion is golden brown, stirring occasionally, about 20 minutes.
  • Top the dough with tomato slices, caramelized onions, rosemary, Parmesan cheese, and salt. Drizzle with remaining 2 tablespoons olive oil.
  • Bake until the focaccia is golden brown, about 20 minutes. Remove from oven and allow to cool on a rack. Cut into pieces and serve.


Basic focaccia recipe adapted from Food & Wine Magazine.


Calories: 308kcal | Carbohydrates: 33g | Protein: 6g | Fat: 17g | Saturated Fat: 3g | Cholesterol: 4mg | Sodium: 650mg | Potassium: 112mg | Fiber: 2g | Sugar: 2g | Vitamin A: 165IU | Vitamin C: 3.1mg | Calcium: 57mg | Iron: 2mg