Savory Caramelized Onion, Mushroom and Thyme Tart

So over Labor Day my one brother was having a big bash at his house.  Since I live pretty far from him, I had to make stuff that would travel well and could be kept at room temperature.  Now in addition my sister was going to be there.  She has an ungodly love of mushrooms and one of the things I make her is this mushroom roll.  However due to my being super, SUPER busy with work, I didn’t have time to make it.  But to not disappoint her I decided to make somethingkinda-sorta-like-it-but-not-really.

Now I made 2 of these – the one I took to the party I made it with my homemade crescent roll dough (sorry but you’re not getting that recipe as I worked years on getting that dough perfect) and one to share (using store bought crescent roll dough).  They both taste really, really good.  When I got there instantly my sister said “What’cha bring me?  Did you make me my mushroom rolls???” LOL  Gotta love it when someone really loves your food!  I told her no and before the frown could form on her beautiful face, I told her what I made her.  Now of course she told me to not put it out for people but rather put it in the car for her.  LOL

This went over incredibly well at the party and I had a ton of requests for the recipe.  So for those that were patiently waiting for it from the party and those TKW Family members on Facebook.. here you go!

Now if you want to mix it up… fry up some bacon and caramelize the onions in the bacon grease.

Yes… BACON!

You’re welcome! <curtsey> haha


Savory Caramelized Onion, Mushroom and Thyme Tart

Rating 

Find more fantabulous recipes, tips and tricks at www.thekitchenwhisperer.net. Also, join our TKW Family on Facebook
Ingredients
  • Homemade crescent roll dough or 2 cans of pre-made crescent roll dough
  • 1 large vidalla onion cut into 1/4” slices
  • 1 pound of mushrooms (baby bella or button), cleaned and sliced in halves or thirds
  • 1 Tbl + 1 tsp fresh thyme
  • 1 Tbl butter
  • 1 Tbl extra virgin olive oil
  • 1 Tbl flour (optional)
  • 1 tsp kosher salt
  • 1/2 tsp ground black pepper
  • 1-2 cups fresh grated cheese (smoked mozzarella, gruyere, fontina, etc..)
Instructions
  1. Put a large skillet over medium high heat.
  2. Add in the butter and olive oil until the butter is melted and just starts to buttle.
  3. Add in the onions and stir to coat the onions with the butter oil.
  4. Spread the onions out evening and let cook, stirring occasionally.
  5. Reduce the heat to medium/medium low to prevent the onions from drying out and or burning.
  6. After 10 minutes sprinkle with1/2 tsp of salt and pepper.
  7. Cook for about 15-20 minutes or until the onions start to caramelize and turn a gorgeous brown color.
  8. Add in the mushrooms and stir to combine.
  9. Cook for 10 minutes or until the mushrooms are soft and cooked. If it seems to be bit dry, add in a tsp of butter.
  10. When the mushrooms are cooked, add in 1 Tbl thyme and remaining salt and cook for 1 minute.
  11. If there is still liquid in the pan, add in the flour and stir to thicken.
  12. Remove from heat and allow to just cool.
  13. While cooling, preheat the oven to 375F.
  14. Line a baking sheet with parchment paper and spray with cooking spray.
  15. Place your dough on the parchment paper and roll out to a 12x16” shape (or the size of your pan). You want the dough to be about 1/4” thick. *If you’re using canned dough, it’ll be 1 1/2 cans worth. You’ll keep the remaining 4 triangles for decorations.
  16. Add the grated cheese on the bottom of the dough leaving a 1-1 1/2” edge.
  17. Add the cooled onion mushroom mixture over top of the cheese spreading it out as evenly as possible.
  18. Starting in one corner, gently fold up an edge of the dough onto the onion mushroom mixture.
  19. Continue all the way around the tart folding up the edges of the tart to help seal it in (the middle is still exposed). As you move around the tart folding up the edges, gently pinch it down almost creating a pleated effect.
  20. To decorate take the remaining dough and make ‘ropes’ out of the dough and add them as criss-crosses to it. Or you could not roll it and use a cookie cutter to create shapes and place them onto the tart.
  21. Bake for 15-17 minutes or until the dough is golden brown and just crisp.
  22. Cool on the pan for 1 minute and then using a large spatula, remove it from the parchment paper and cool on wire rack for a 5 minutes (if you’re going to eat right away) or until room temp. This can be served room temp or hot.
Notes
Like Bacon? Okay seriously, like who doesn't? LOL Fry up 6 slices of bacon. Break up into pieces. Instead of the butter and olive oil above, caramelize the onions in the bacon grease.

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