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Apple Cheddar Flatbread Pizza With Caramelized Onions

Celebrate fall and apple season with this Apple Cheddar Flatbread Pizza With Caramelized Onions; it's the perfect weekend treat!
Course Main Course
Keyword apple, balsamic, caramelized onions, caramelized onions, cheddar, flatbread, pizza, pizza
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Servings 6 slices
Author Dana Sandonato


  • 1 large pizza shell (homemade or store-bought)
  • 1 TBSP olive oil
  • 1 TBSP butter
  • Kosher salt
  • 1 large sweet onion, thinly sliced into rings
  • 1 cup shredded cheddar, mild or sharp Mild or sharp cheddar melts best; aged cheddar contains less moisture so will act more like parmesan and won't melt as nicely
  • 1 apple; thinly sliced, preferably with a mandolin I used gala apples. Any sweet and flavorful apples will work AKA not a "delicious" apple.
  • 1/2 cup chopped walnuts
  • Drizzle of balsamic vinaigrette (about 2 TBSP worth)


Caramelizing onions.

  • Melt the butter in a medium saucepan over medium-low heat. Add the sliced onions, sprinkle with salt, and toss them to coat. Let them simmer for about 30-40 minutes, stirring occasionally to prevent burning. Low and slow is the method you want to use here. Once the onions have browned and become extremely soft (this will take about 30-40 minutes) you can remove them from the heat.

Flatbread prep.

  • Pre-heat the oven to the suggested time on the pizza shell packaging or, for homemade, see notes.
  • Brush the olive oil all over the pizza crust. Top the pizza with the caramelized onions, followed by the cheese, apple slices, and walnuts. You can sprinkle a little extra cheese on top at this point if desired. (I always do; cheese is my weakness.)
  • Place the pizza in the oven. If store-bought, cook as per the package's directions. If homemade, cooks as per the recipe's directions. You're looking for a golden crust and melted cheese.
  • Remove the pizza from the oven and let it cool for 5 minutes. Once slightly cooled, drizzle balsamic over it, sliced and serve.


*Working with from-scratch dough: Typically you want to bake from-scratch flatbread at 425° F for 7-15 minutes, or until the dough has crisped and turned golden in color. Always double check with the dough recipe you’re using.
**Prep time: This is based on the use of pre-made flatbreads. If you’re making your own from-scratch flatbread, prep time will be up to two hours longer, depending on your recipe, in order to let the dough rise. Keep this in mind when planning!