Go Back
Print Recipe

Gluten Free Onion Tart

Prep Time15 minutes
Cook Time35 minutes
Total Time50 minutes
Course: Appetizer, Brunch
Cuisine: French
Keyword: anchovies, gluten free, gluten free piecrust, Onions, parmesan, sauteed onions, thyme, white pepper, whole foods market
Servings: 8 slices
Author: GFchow @ gfchow.com

Equipment

  • Mandoline (optional)

Ingredients

  • 2 tablespoons olive oil
  • 3 medium or 2 large white or yellow onions skin removed and thinly sliced, preferably using a mandoline
  • Kosher salt and ground White pepper to season onions (use black pepper if you don't have white pepper in your spice rack)
  • 2 teaspoons thyme (or rosemary) preferably fresh and chopped
  • 2-3 tablespoons parmesan cheese freshly grated, divided
  • 1 frozen gluten free pie crust defrosted (See NOTES section below for crust options), I use Whole Foods brand
  • 5-6 anchovy filets oil-packed, optional

Instructions

  • Preheat oven to 425 on Bake setting.
  • Heat a large, non-stick pan over medium heat and add olive oil and then onions. Stir occasionally. Once onions become tender and translucent (approx. 5-7 minutes), raise the heat to medium-high and continue cooking until onions are caramelized and browned, approx 7-8 additional minutes. Total cook time, 12-15 minutes.
  • Season onions with salt, pepper, and thyme.
  • Using a fork, pierce the bottom of the pie crust all over. Sprinkle 1 tablespoon parmesan on bottom of the crust.
  • Then transfer onions to the pie crust and spread evenly. If using anchovies, arrange them on top of the onions like the spokes of a wheel. Sprinkle remaining 1-2 tablespoons of parmesan on top and crimp edges of pie crust if desired. Bake for 20 minutes, until pie crust and parmesan have browned.
  • Serve tart warm or at room temperature and slice into wedges or let everyone cut his/her own slice.

Notes

For a more homemade appearance, carefully transfer the pie crust before it's totally defrosted to one of your own pie dishes. If desired, you can also crimp the edges over the onions for a more free-form look.
If you're not gluten free, use any pre-made crust or make your own pie crust.
The best way to resolve whether to make this tart with or without anchovies is to make two...one with anchovies and one without. Now everyone will be happy!
Many markets sell gluten free pie crusts. I use Whole Foods brand because it's a nice thick, buttery gluten free crust.