top of page
Writer's pictureChef Matt Basile

Grilled Onion Tartlet



a grilled onion tartlet in a cast iron pan with basil gremolata drizzled on top

I've never been big into baking and doughs. They have just never been my thing. So, I do like to take advantage of a solid packaged puff pastry every so often, but of course, I have to do my own twist to make it something extra special and delicious. Enter this Grilled Onion Tartlet made on the Alchemy. The puff pastry is par-baked in the Alchemy smoker and then filled with a creamy bechamel sauce and then topped with grated gruyere, thinly sliced tomato, grilled onions, and crispy grilled bresaola and then goes back into the smoker for that cheese to melt and the flavours to meld. Once the done, the tartlet is sprinkled with a light and fresh basil gremolata, sliced and served. Whether you're looking for something different to make with your grocery store's packaged puff pastry, or trying to impress your guests while entertaining, this recipe is for you. Keep reading to find out how to make my Grilled Onion Tartlet, or jump to the full recipe.


red onions being thinly sliced into rounds

Set smoker to 375-400F. Peel and slice the onions into rounds.


grilled onions on the Alchemy flattop

Add the sliced onions to the flattop with oil to grill, flipping at least once.


crispy bresaola being cooked on the Alchemy Grills flattop

Add the slices of bresaola to the flattop to grill, flipping midway, remove once crispy.


puff pastry dough being placed in a thin layer into a cast iron pan

Place the puff pastry sheet in a medium cast iron pan, pull it until it can be folded slightly over the edges, and press down gently with your hands to flatten into the pan.



the puff pastry being brushed with an egg wash

Brush the puff pastry with beaten egg, then place in the smoker.


the golden par-baked puff pastry in a cast iron pan

Bake the puff pastry for about 5-8 minutes, or until golden and par-cooked, then remove from the smoker and set aside.


flour being sprinkled into butter in a pan to make a bechamel sauce

While the puff pastry bakes, make your bechamel by adding a pan to the grill and adding in the butter. Grate a clove of garlic and add to the butter and stir. Grate the zest from one lemon into the pan. Mix. Sprinkle the flour one tablespoon at a time, into the butter, mix.


milk slowly being poured into the pan to make a bechamel sauce

Meanwhile, make your bechamel by adding a pan to the grill and adding in the butter. Grate a clove of garlic and add to the butter and stir. Grate the zest from one lemon into the pan. Mix. Sprinkle the flour one tablespoon at a time, into the butter, mix.



the creamy bechamel sauce being poured into the par-baked puff pastry

Remove the bechamel from the heat. Spread into the puff pastry shell.



layers of grilled onions, sliced tomato and crispy grilled bresaola being placed over the bechamel sauce in the puff pastry

Grate the gruyere and sprinkle on top of the bechamel. Slice the tomato into rounds and place on top of the cheese. Add the grilled onions on top of the tomatoes and place the grilled bresaola throughout the tartlet, under the onions.



the grilled onion tartlet going into the Alchemy smoker

Drizzle the whole thing with 1 tsp olive oil and place back in the smoker. Cook about 10 minutes, or until cheese it melted.


fresh basil being chopped with olive oil

While the tartlet bakes, finely chop the fresh basil. Drizzle with olive oil and chop more. Add to a bowl.


chopped basil in a bowl to make gremolata and being seasoned with salt

Drizzle with more olive oil to thin it out, squeeze in the juice from half a lemon, and season with salt and pepper and mix.


drizzling basil gremolata over the finished grilled onion tartlet

Take the tartlet out of the smoker and carefully remove from the pan onto a plate or cutting board. Drizzle with the gremolata, season with salt and pepper and serve.


And now for the full recipe...


Grilled Onion Tartlet

Serves 4 to 6 people

Prep Time: 10 minutes

Cook Time: 20 minutes

Total Time: 30 minutes


Ingredients:

2 large red onions

3 medium white onions

Canola oil

5-6 slices bresaola

puff pastry

1 egg

1/4 cup butter

1 clove garlic

Zest from one lemon

1-2 tbsp flour

2-3 tbsp milk

1/2 cup grated Gruyere

1 large heirloom tomato

1 tsp olive oil


Gremolata:

2 tbsp chopped fresh basil

1-2 tbsp olive oil

Juice from 1/2 lemon

Salt

Pepper


How to Make A Grilled Onion Tartlet


Set smoker to 375-400F.


Peel and slice the onions into rounds, add to the plancha with oil to grill, flipping at least once.


Add the slices of bresaola to the plancha to grill, flipping midway, remove once crispy.


Place the puff pastry sheet in a medium cast iron pan, pull it until it can be folded slightly over the edges, and press down gently with your hands to flatten into the pan. Brush the puff pastry with beaten egg. Place in the smoker for about 5-8 minutes, or until golden and par-cooked then remove from the smoker and set aside.


Meanwhile, make your bechamel by adding a pan to the grill and adding in the butter. Grate a clove of garlic and add to the butter and stir. Grate the zest from one lemon into the pan. Mix. Sprinkle the flour one tablespoon at a time, into the butter, mix. Slowly pour in the milk to the pan while mixing, and continue to mix until smooth. Remove from the heat. Spread into the puff pastry shell.


Grate the gruyere and sprinkle on top of the bechamel. Slice the tomato into rounds and place on top of the cheese. Add the grilled onions on top of the tomatoes and place the grilled bresaola throughout the tartlet, under the onions. Drizzle the whole thing with 1 tsp olive oil and place back in the smoker. Cook about 10 minutes, or until cheese it melted.


While the tartlet bakes, finely chop the fresh basil. Drizzle with olive oil and chop more. Add to a bowl. Drizzle with more olive oil to thin it out, squeeze in the juice from half a lemon, and season with salt and pepper and mix.


Take the tartlet out of the smoker and carefully remove from the pan onto a plate or cutting board. Drizzle with the gremolata, season with salt and pepper and serve.


Make sure to subscribe to my newsletter so you never miss out on a new recipe, follow me on all my social channels @chefmattbasile and check out my new project @alchemygrills for updates, recipes and videos.

Comments


Jump to recipe Canadian Breakfast Sandwhich

Recipe Categories

chef-Matt-Basile-headshot-photograph.jpg

Matt Basile

MEET THE CHEF

76.png

Chef Matt Basile is the founder of the Toronto-based street food brand, Fidel Gastro's, which, within four years, went from an underground sandwich pop-up to an internationally recognized food brand. Now almost a decade later, Matt has a still growing business of food experiences, restaurant consulting and new and exciting foodie-filled projects on the way. Matt always strives to be different in an industry steeped in tradition. Matt is also the author of the best-selling cookbooks Street Food Diaries and Brunch Life, and was the host of the travel food show Rebel Without a Kitchen for two seasons. More here!

bottom of page