Caramelized Onion, Feta & Serrano Ham Flatbread Recipe
Introduction
This caramelized onion, feta, and Serrano ham flatbread is a delightful combination of sweet, savory, and tangy flavors. Perfect for a quick lunch or an elegant appetizer, it brings together tender onions, salty cheese, and delicate cured ham on a crisp flatbread base.

Ingredients
- 1 large red onion (halved and thinly sliced)
- 1/4 cup dried cranberries (chopped)
- 4 tablespoons balsamic vinegar (divided)
- 2 tablespoons water
- 2 tablespoons brown sugar
- 1 flatbread
- 1/3 cup feta cheese (crumbled)
- 4-6 thin slices Jamon Serrano (ham or prosciutto)
- 1/2 cup baby arugula
- 1 tablespoon agave nectar or honey
Instructions
- Step 1: In a frying pan or sauté pan, combine the sliced onions, chopped dried cranberries, 3 tablespoons of balsamic vinegar, water, and brown sugar. Bring the mixture to a boil, then cover and reduce the heat to a simmer. Cook for 10 to 15 minutes, stirring occasionally, until the onions are soft and caramelized.
- Step 2: Whisk together the remaining 1 tablespoon of balsamic vinegar with the agave nectar or honey and set the mixture aside to create a glaze.
- Step 3: Heat the flatbread by grilling, baking, or using a stovetop grill pan. Flip it over and evenly spread the caramelized onions on top. Sprinkle with crumbled feta cheese, then layer the Serrano ham or prosciutto slices.
- Step 4: Cook the flatbread (cover if using a grill or stovetop grill pan) for about 5 minutes, or until the cheese begins to melt and the flatbread is warmed through.
- Step 5: Remove the flatbread from the heat, top with baby arugula, and drizzle the balsamic glaze over everything. Cut into slices and serve immediately.
Tips & Variations
- For a milder onion flavor, soak the sliced onions in cold water for 10 minutes before cooking.
- Substitute goat cheese or mozzarella if you prefer a different cheese texture or flavor.
- Add toasted pine nuts or walnuts on top for extra crunch and nutty depth.
- Use fig jam instead of agave or honey for a richer, fruitier glaze.
Storage
Store any leftover flatbread wrapped tightly in plastic wrap or in an airtight container in the refrigerator for up to 2 days. Reheat in a preheated oven at 350°F (175°C) for about 5-7 minutes to keep the crust crisp. Avoid microwaving to prevent sogginess.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use a different type of ham?
Yes, prosciutto or any thinly sliced cured ham works well as a substitute. Just choose one with good flavor and a tender texture.
Is it possible to make this recipe vegetarian?
Absolutely. Simply omit the Serrano ham and consider adding extras like sautéed mushrooms or roasted red peppers for more flavor and substance.
Print
Caramelized Onion, Feta & Serrano Ham Flatbread Recipe
- Total Time: 30 minutes
- Yield: 1 flatbread, serves 2-3 1x
Description
A delicious flatbread recipe featuring sweet caramelized onions paired with tangy feta cheese, savory Serrano ham, and a fresh arugula topping, finished with a balsamic glaze drizzle. Perfect as a flavorful appetizer or light meal.
Ingredients
Caramelized Onion Mixture
- 1 large red onion (halved and thinly sliced)
- 1/4 cup dried cranberries (chopped)
- 4 tablespoons balsamic vinegar (divided)
- 2 tablespoons water
- 2 tablespoons brown sugar
Flatbread Toppings
- 1 flatbread
- 1/3 cup feta cheese (crumbled)
- 4–6 thin slices Jamon Serrano (ham or prosciutto)
- 1/2 cup baby arugula
- 1 tablespoon agave nectar or honey
Instructions
- Caramelize the onions: In a frying pan or sauté pan, combine the sliced onions, dried cranberries, 3 tablespoons of balsamic vinegar, water, and brown sugar. Bring the mixture to a boil, then cover, reduce heat to a simmer, and cook for 10 to 15 minutes, stirring occasionally until the onions become soft and caramelized.
- Prepare the balsamic glaze: While onions are cooking, whisk together the remaining 1 tablespoon of balsamic vinegar and the agave nectar or honey in a small bowl. Set aside for drizzling.
- Heat and top the flatbread: Warm the flatbread on a grill, in the oven, or on a stovetop grill pan. Once heated, flip it over and evenly spread the caramelized onion mixture on top, then sprinkle with crumbled feta cheese. Arrange the slices of Serrano ham or prosciutto over the cheese.
- Cook the assembled flatbread: Continue to grill or bake the flatbread for about 5 minutes, covering it if using a grill or stovetop grill pan, until the cheese begins to melt and the toppings warm through.
- Finish and serve: Transfer the flatbread to a cutting board, top with baby arugula, and drizzle with the prepared balsamic glaze. Slice and serve immediately while warm.
Notes
- You can substitute Jamon Serrano with prosciutto or another thinly sliced cured ham if unavailable.
- Adjust sweetness of the balsamic glaze by varying the amount of agave nectar or honey to your preference.
- If you prefer a crispier flatbread, preheat the oven to 400°F and bake the topped flatbread for 5–7 minutes.
- Use gluten-free flatbread for a gluten-free version of this recipe.
- Can be served as an appetizer or light lunch paired with a simple green salad.
- Prep Time: 10 minutes
- Cook Time: 20 minutes
- Category: Flatbread
- Method: Stovetop
- Cuisine: Spanish
Keywords: caramelized onion, feta cheese, Serrano ham, flatbread, balsamic glaze, appetizer, savory, easy recipe

