Butternut Squash Tart with Caramelized Onion, Rosemary & Coppa


Take-out was a temping last minute dinner option, but instead I found myself searching the freezer for something that I could turn into a suitable meal. We had planned to eat dinner at my parents’ house, but a wind storm ripped through Santa Cruz that day/evening, knocking out power to many, and even bringing trees down on top of houses. Luckily, the latter did not happen to my parents’ house, but no power and a tree blocking their road meant a definite plan B.


Back to the freezer search. The first thing that caught my eye was puff pastry, an impulse purchase I had made last week. How fortuitous! I decided I wanted to make some sort of puff pastry tart or “pizza.” Now, what to top it with … ah! Half a butternut squash, peeled and cubed that I froze last week. This would do. I added some fresh rosemary from the garden, caramelized our last onion, and cut up some coppa (one of our favorite charcuterie offerings from El Salchichero) to add a little salty kick. This rustic puff pastry tart was a success. Feel free to adapt this for whatever needs to get used in your freezer on a stormy evening. It would also make a lovely appetizer when cut into squares.

Butternut Squash, Caramelized Onion & Rosemary Tart

(Adapted from A Cozy Kitchen)

1 yellow onion, sliced
Extra virgin olive oil
Butter
1 cup cubed butternut squash
Flour, for dusting work surface
1 sheet frozen puff pastry
1/4 cup coppa, diced (can also use salami, or cooked, crumbled bacon or pancetta)
Pecorino Romano cheese, grated (enough for sprinkling on top)
Mozzarella cheese, shredded (about 3 ounces)
Fresh rosemary, chopped
Salt and pepper

  • Preheat oven to 450 degrees.
  • In a medium skillet, heat olive oil and a little pad of butter over medium high heat. Once oil is hot, add sliced onions and pinch of salt. Cook until caramelized, about 25-30 minutes, stirring frequently. When onions are a beautiful light golden brown color, add a splash of balsamic vinegar. Stir to coat the onions, then remove from heat.
  • While onions are caramelizing, place cubed butternut squash (if frozen, defrosted first) on a parchment lined baking sheet and roast for 15-20 minutes, or until tender with a fork, stirring halfway through. Turn oven heat down to 400 degrees.
  • On a floured surface, roll the puff pastry into a rectangle (or square – whatever – it’s a rustic tart!) Carefully transfer puff pastry onto a parchment lined baking sheet. Using a sharp knife, lightly “score” the pastry dough, 1-inch in from the edges. Then using a fork, poke holes inside the markings. This will ensure that the outside trim puffs up and the middle stays flat. Bake for 15 minutes, or until slightly golden brown.
  • Scatter mozzarella cheese and some the Pecorino Romano over the puff pastry. Next, top with the roasted butternut squash, caramelized onions, rosemary, and sliced coppa. Finish with a little more pecorino. Sprinkle with salt & pepper.
  • Return to oven and bake for 15 minutes more, or until cheese is melted and edges are golden brown. Slice and serve.

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4 thoughts on “Butternut Squash Tart with Caramelized Onion, Rosemary & Coppa

  1. This looks delicious. I love how versatile puff pastry is and the fact that you made such an awesome looking pizza out of it further confirms my love for it. Then adding butternut squash? yay!

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