Tomato & Mustard Tart

Tomato tart 7.jpg

Hitting play again

The lists are growing.  The calendar is making no sense.  The colors need to change.  It’s the second start of the same chapter.  Time to press the turbo on whatever you have been leaving behind.  The end of summer has always meant for me the beginning of a second chance, mostly for procrastinators.  It’s like the procrastinators New Year!

After these hot days, the ones where you are lazy thinking time around you just stopped, I retake the list of projects I want to materialize beyond the paper.  Most of them are recipes I’ve wanted to cook or new color palettes I want to incorporate to my pictures.  But there’s always something new following the final days of summer.

Big, juicy, red tomatoes are the quintessential way to say good-bye to summer.  That’s why I wanted to make a delicious, crispy and fruity tomato and mustard tart.  A recipe idea I’ve been hoarding since probably two years ago.  Not exaggerating.

All the flavors go so well with each other.  You have the two type of acidic notes; the sweet one from the tomatoes and the bitter one form the mustars.  The herbes de Provence make it fresh (and French) with all the mellow herb notes.  And you traditionally wouldn’t think in ginger with this flavors but I’m not traditional, so here it went.  It gave this tart and nice bite in your tongue, without making it spicy.  The crust is soft and buttery and you just can’t have enough.  It’s one of the best dishes I have made.  Summer most me very proud of me!

Recipe notes:

1. Very chilled butter is key in any piecrust.  I cut mine in pieces over it’s own paper and placed it in the freezer for five minutes, while you prepare your other ingredients and equipment.

2. When making piecrust, knowing what you are looking for is more important than times.  Work your ingredients until you reach the texture the recipe calls for.  Times given are just to give you an idea.

3. When rolling dough do not use a back and forth stroke.  Start in the center and stretch outward.  After some stretching you may see the dough breaking a bit on the edges because that area is thinner.  Only in that spot you can make small back and forth strokes with you rolling pin.  When the dough gets back in shape continue stretching it from the center out.

4. If the dough gets any cracks while transferring it to the pie dish just press it with your fingers.  If it breaks completely, make a ball again, knead for about 30 seconds and start over with the stretching.  It will probably behave better this second time.

6. The amount of garlic in this recipe is very little so I just used the fresh ground garlic jar from the supermarket and it worked perfectly.

7.  Some of the steps here are to prevent sogginess in the crust, such as the mustard on the bottom or the shallots in between the tomatoes and the dough.  I also absorb some of excess liquid trapped between the tomatoes after taking the tart out of the oven.

Tomato tart recipe

Tomato & Mustard Tart

Pie crust

Unbleached all purpose flour – 3 cups
Raw sugar – 2 TBSP
Fine sea salt – 2 ½ Tsp
Unsalted butter, chilled and cut in pieces (see notes) – 2 sticks
Full fat organic coconut milk – ⅓ coconut milk
Iced water – About 1/2 cup

Tomato and mustard filling

Beefsteak tomatoes – 6 to 8 tomatoes
Basil mustard (or regular Dijon mustard with some fresh chopped basil) – 3 TBSP
Grainy mustard – ½ TBSP
Ground dried ginger – ¼ Tsp
Herbes de Provence – 1 Tsp
Ground sage – ¼ Tsp
Ground garlic – ¼ Tsp (see notes)
Extra virgin olive oil – 1 TBSP
Asiago Cheese, grated – 1 ½ TBSP, divided
Fine sea salt – 1 Tsp + 2 pinches
Unbleached all purpose flour – 2 Tsp
Shallots, diced – ¼ cup

Enough for two regular 10” crusts or a 10” crust plus decorations.
Total time - 2 hours, including time for chilling the dough  Active time - 25 minutes
Equipment - Food processor, 10" tart pan or pie dish, rolling pin

To make the Pie crust: (UPDATE: You may refer to my “How To Make a Beautiful Pie” guide for more details on how to make the perfect crust)

Place the flour, sugar and salt in the bowl of a food processor already attached to its base.  Pulse a couple of times to integrate everything.  Add the pieces of butter and pulse until the butter incorporates into the flour and a coarse meal forms, about 20 seconds.  Slowly pour the coconut milk through the lid hole with the food processor running.  Pour very slowly the iced water. Start with 4 tablespoons and add from there depending on how dry your dough is. Stop the moment a ball form inside the food processor bowl and the motor starts to slow down. Take out the dough from the food processor bowl and divide it in two halves. If it’s too moist just add some flour around the ball and incorporate it very gently. Flatten each disk out to form 2 flat disks of 6 to 7 inches approximately.  Wrap each disk with plastic paper and place them in the fridge for 1 hour.

To make the filling:  Place double paper towels on a baking or large tray.  Slice the tomatoes in ¼” thick slices and placed them on the paper towel.  Sprinkle the tomatoes with the pinch of the salt and turn them upside down.  Sprinkle the other side with just an extra pinch of salt.  Let them rest for 30 minutes.

In a small bowl mix the mustards, herbes de Provence, sage, garlic, oil, half of the Asiago cheese and the remaining teaspoon of salt.  Add in the flour and mix once more.  Set aside.

To assemble the tart

Take 1 disk of dough out of the fridge and let it soften a bit (don’t let it come to room temperature completely). Place the dough in a clean flat surface (see notes)dusted with flour and using a rolling pin already dusted with flour as well start stretching it from the center outwards forming a circle.  Stretch until you have a circle an inch larger that your pie dish.  Roll the dough in on your rolling pin and transfer over your tart pan, carefully arranging it on the center.  Start pressing gently the dough in the center of the dish until you reach the edge.  If you feel air beneath the dough on the edge just pull up the border and let it kind of sink into the dish, helping with your fingers.  Gently press the dough on the border toward the fluted pan wall. 

With the back of a spoon spread about 1 tablespoon of the mustard mixture on the bottom of the tart dough.  Sprinkle with half of the remaining Asiago cheese.  Place randomly across the dough half of the shallots slices.  Pat dry the top of the tomatoes and place them side by side to create the first layer of the tart.  Spread almost entirely the remaining mustard mix, leaving out about a tablespoon.  Sprinkle the last Asiago cheese and place the remaining shallots across the tomatoes.  Arrange a second layer of the tomatoes, placing the first slice in the center of two tomatoes in the bottom layer.  Complete arranging the second layer, centering the slices between two tomatoes at the bottom as much as possible.  Gently spread the remaining mustard mixture on top of the tomatoes and, if desired, sprinkle a bit of extra cheese and herbes de Provence. Place the tart in the freezer for 20 to 30 minutes.

Preheat oven to 400°.

Transfer tart to preheated oven and Bake for 40 to 50 minutes, until the edges are golden yellow.  Retire from oven.  You may absorb any excess liquid you may see through the tomatoes with a paper towel.  Let it cool down before cutting and serving.  You may refrigerate and reheat in a 350° oven.  Enjoy with a fresh salad or a roasted chicken and a crisp white wine!

Tomatoe and mustard tart recipe