Rustic Tomato Galette

This recipe comes from the American Test Kitchen and is an incredible new take on how to use tomatoes when in season, to create a great tomato side dish or a brunch dish. It is like a tomato pie, with a crust that is so buttery and flaky, filled with tomatoes, shallots and savory gruyere cheese. Even our kids who say they don’t love tomatoes, ate this up like it was pizza and asked for more! If you are a tomato lover, you will find yourself making this recipe over and over again. This crust was so good I have used the recipe to make fruit galettes as well.

TIPS: This is absolutely the best when made with fresh tomatoes when they are in season, however it is also a good way to hide the tasteless winter tomatoes that are not in season, and make them stand out. Mixing up the type of tomatoes makes it fun. If needed, you can substitute dried thyme for fresh, just reduce it by a fourth.

Rustic Tomato Galette

5 from 1 vote
Prep Time 35 minutes
Cook Time 45 minutes
Resting time 1 hour
Total Time 2 hours 20 minutes

Ingredients
  

Galette Dough:

  • 1 1/2 C all purpose flour (7 1/2 oz)
  • 1/2 tsp table salt
  • 10 Tbsp unsalted butter chilled cut into 1/2 inch dice
  • 6-7 Tbsp ice water

For Galette:

  • 1 1/2 lbs large mixed tomatoes cored and sliced 1/4 inch thick
  • 1 shallot sliced thin
  • 2 Tbsp extra virgin olive oil
  • 1 tsp fresh minced thyme
  • 1 garlic clove minced
  • 1 1/2 tsp salt divided
  • 1/4 tsp pepper
  • 2 tsp dijon mustard
  • 3/4 C shredded gruyere cheese
  • 2 Tbsp grated parmesan cheese
  • 1 large egg lightly beaten
  • 1 Tbsp chopped fresh basil leaves

Instructions
 

Galette Dough:

  • Put 1/2 cup water in a glass with a couple of ice cubes for the ice water.
  • Process flour and 1/2 tsp salt in food processor until combined, about 3 seconds. Scatter cold butter over top and pulse until mixture resembles course crumbs, about 10 pulses. Transfer to a large bowl.
  • Sprinkle 6 Tbsp ice water over the flour mixture. Using a rubber spatula, stir and press dough until it sticks together, adding up to 1 Tbsp more water if dough does not come together.
  • Turn dough out onto a lightly floured surface, pat into a 4 inch disc, wrap tightly in plastic wrap and refrigerate for 1 hour. (Wrapped dough can be refrigerated up to 2 days or frozen up to a month).

For Galette:

  • Toss tomatoes and 1 tsp of salt together in a second bowl. Transfer tomatoes to a colander and set colander in the sink. Let tomatoes drain for 30 minutes.
  • Preheat oven to 375 degrees (or 350 convection oven). Line a rimmed baking sheet with parchment paper. Take chilled dough out of refrigerator and let sit on counter for 10 minutes to soften slightly before rolling.
  • Roll out dough on a lightly floured surface, into a 12-inch circle. Gently roll dough over the rolling pin and transfer to prepared baking sheet. (Its ok if dough runs over the lip a bit).
  • Shake colander well to rid tomatoes of excess juice. Add shallots, oil, garlic, thyme, 1/2 tsp salt and pepper into the bowl and mix with tomatoes.
  • Spread or brush dijon mustard over the dough leaving a 1-1/2 inch border. Sprinkle the gruyere in an even layer over the mustard. Shingle the tomatoes and shallots on top of gruyere in overlapping concentric circles, keeping within the 1-1/2 inch border. Sprinkle parmesan over the tomato mixture.
  • Carefully grasp 1 edge of dough and fold it up over filling. Repeat around the circumference of the tart overlapping the dough every 2 inches, gently pinching the pleated dough together to secure. Brush the folded dough edge with egg (you wont need it all).
  • Bake until crust is golden brown and tomatoes are bubbling, about 45-50 minutes. Transfer baking sheet to a wire rack and let galette cool for about 10 minutes. Using a metal spatula, loosen galette from parchment and carefully slide onto wire rack. Let cool until just warm, about 20 minutes. Sprinkle with basil. Cut into wedges and serve warm.
  • Enjoy!