{Baking/Preserving} SLOW ROASTED TOMATOES … Preserve the Bounty Week # 2

“It’s difficult to think anything but pleasant thoughts while eating a homegrown tomato.”
Lewis Grizzard
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Tomatoes form an integral part of our everyday food, often like the butter on our daily bread. Whether it’s a simple tossed salad, soup, salsa, juice, pizza sauce, chicken curry or  ketchup … it seems to rule the palate. Think tomatoes, think typically red edible juicy fruit {has seeds, is technically fruit}, one that originated in South America, but can be found in every little corner of the world. This heat loving crop is in season in India the whole year round, but not so in many other places, where it is a ‘seasonal vegetable‘, thus the need to preserve it when the season is at it’s peak.

Preserve the Bounty: August 2010

A little bit about the Preserve the Bounty Challenge hosted at Nourished Kitchen. In the month of August we’re setting aside our pressure canners and we’ll be preserving the bounty of the summer season naturally while optimizing the nutrition of the foods we put up for winter.  Over the course of 5 weeks we’ll cover sun-drying, oil curing, freezing, fermentation and salt-curing – traditional techniques that optimize nutrition and don’t heat up the kitchen like canning.

Week # 1 was Fermentation where I posted Ottolenghi’s Preserved Limes. Further inspired, I decided to pickle some local peppers and made a jar of Pickled Jalapeños.

Week #2: Oil & Fat

Preservation by oil and fat is a traditional technique that has been practiced for a very, very long time. It’s an ancient technique, really and it’s most prevalent in the Mediterranean where olive oil is plentiful. Oils and fats are remarkable preservatives and can keep fresh foods and herbs in good condition for several months or even years, provided proper conditions are met for optimal storage. Certain foods are better suited to certain preservation methods than others. Among the foods most well suited to preservation by oil or fat including mushrooms, garlic, herbs, tomatoes (fresh and dried) and eggplant.  Nourished Kitchen

It’s important to note that, while quite rare, botulism spores can contaminate low-acid foods (like garlic) that are preserved in oil or fat when it is kept at room temperature. For this reason, it’s critical that you either keep your oil-preserved food in the refrigerator or freezer (unappealing, I know) or that you add a bit of acid to the oil which should keep the toxin at bay … Nourished Kitchen
To Preserve in Oil {Preferably Olive Oil} – Recipe from Nourished Kitchen

Clean your vegetables and pack them in a quart-sized mason jar.
Add spices and herbs that suit you.
Add about 1/4 cup cider or wine vinegar, preferably raw.
Cover with oil.
Allow to marinate at room temperature for at least a month, shaking periodically to distribute the the vinegar.
After a month, you can open the jar, scoop out what you need, place the lid back on the jar and continue storing in a cool, dark place.

I made just a small batch of preserved tomatoes since I have a tiny little oven. If you wish to do a larger batch it is worthwhile reading this post by Chez PaniseTomato Confit: oven-dried tomato in olive oil. Parboiling the oven dried tomatoes before canning them seems a more sure shot way, but for now I am content with doing small batches that I can use up sooner.
There are over 7000 listed varieties of tomatoes worldwide, and one of the most fascinating ones are heirloom tomatoes {which we don’t get to see in India}. Though it is botanically a berry, a subset of fruit, the tomato is a vegetable for culinary purposes, because of its savory flavor. Tomatoes are acidic, making them especially easy to preserve in home canning whole, in pieces, as tomato sauce or paste. The fruit is also preserved by drying, often in the sun, and sold either in bags or in jars with oil.
This recipe at Cook Sister posted by the wonderful & hilarious Jeanne has been in my bookmarked folder forever! Small wonder that I reached there pronto when I read this weeks challenge. Oooh delicious, tangy, dried tomato bits, some which fell into my greedy little mouth. For that Jeanne is to blame. She should have never mentioned the odd nibble!! I loved the vibrant end result – a heady mix of garlic, oregano and tangy tomato in a wonderful olive oil. Try the recipe, and you will know!!

Slow Roasted Tomatoes

Adapted from Jeanne’s recipe @ Cook Sister
About a dozen large, ripe tomatoes
2 Tbsp good olive oil
2 Tbsp dried oregano
3-4 cloves of garlic, finely chopped
2-3 tbsp sea salt
Enough good quality extra virgin olive oil to cover cooked tomatoes when placed in a jar {I used Borges from here}

Method

Wash the tomatoes and cut into halves or into quarters, and remove and discard seeds. Sprinkle the tomatoes with salt and leave cut side down for about an hour for extra water to drain.
Mix the oil, garlic and spices together in a large bowl and toss the tomatoes in the mixture until well coated.
Line a sheet with parchment paper and arrange the tomatoes on it, cut side down.
Place the baking sheet in an oven that has been preheated to 100C. Sit back, relax and wait for the house to start smelling glorious.
You will begin to see a difference after 2-3 hours – a little shriveling. Check them after about 4-6 hours depending the size and quality of tomatoes, and on the temperature of your oven, they should be ready. The tomatoes should have shrunk to about half to a third of their original size, the skin should be puckered and should be able to be pinched off with relative ease.
Remove from the oven when done. Remove the skins while they are still warm if you like, but, like Jeanne, I like leaving the skin on. You can either use them immediately, freeze them in batches to use throughout winter, or put them in a glass jar, cover with olive oil and store them in the fridge and use within a week.

Note: I don’t recommend storing them for longer in view of botulism fears in the long run.

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SUN DRIED TOMATOES SANS THE SUN!

“A world without tomatoes is like a string quartet without violins.”
Laurie Colwin
Making hay while the sun shines…? Well, I made sun dried tomatoes when the sun didn’t shine. Actually, the vegetable vendor had a bounty of the most luscious looking tomatoes one day… red, juicy & going cheap – Rs 10 a kilo (25 cents) for the beauties. Irresistible as usual, so I bought 2 kilos to make sun dried tomatoes, but the next 2 days were foggy & dreary as luck would have it, with worse weather forecast to follow. Back to the ever dependable net, & browsing led me to a simple recipe for ‘How to make sun dried tomatoes without the sun’ on Channel 4. I even got a chance to use some fresh herbs from the garden which were just beginning to sprout – thyme & oregano. The recipe worked well, & the tomatoes got made beautifully, but am guilty of a carbon footprint
Next time, the Indian summer sun is going to bake trays of tomatoes for me, as summer is fast approaching. The recipe called for some fresh thyme & garlic cloves to the olive oil. I added some fresh oregano sprigs too, with some pink & black pepper for taste, prior to dunking the sun dried bits in.SUN DRIED TOMATOES WITHOUT THE SUN
Recipe courtesy Channel 4
‘Sun dried tomatoes taste delicious on pizzas, in pasta or tossed into salads. It’s easy to recreate the taste of the Med on a dreary wind-lashed day. As long as you’ve got an oven, some oil and a host of fresh herbs, you’re just a few steps away from scrumptious tomato preserves’…quoted from Channel 4.
Ingredients:
16 plum tomatoes; cut into halves, or quarters if they are too big
2 tbsps olive oil
2 tsps Castor sugar
5 sprigs of thyme
4 cloves of garlic peeled
500ml of extra virgin olive oil
Generous pinch of sea salt & black pepper
Red chili flakes (optional)
Method:
  • Preheat the oven between 50-60C.
  • Place the cut tomatoes on baking sheets lined with parchment, cut sides up, & drizzle liberally with olive oil. Sprinkle with sea salt, black pepper & Castor sugar.

  • Place into the pre-heated oven & leave to dry for at least 7-8 hours or until most of the moisture has gone. Be careful to leave some moisture in them so they taste nice & juice when preserved. They should be roughly the consistency of raisins. If they are wet & sloppy, they are underdone; if they are dark & brown, they are overdone.
  • When you think they are done, remove the tomatoes from the oven & leave to cool until they can be easily handled.

  • While the tomatoes are cooling, you can sterilise the jar. Wash it in hot soapy water, & place it upside down in a preheated oven at 50C. After 10 minutes remove it form the oven & leave it to cool.
  • Sprinkle a little salt & pepper into the jar, add the peeled garlic cloves, the thyme & the chilies/pepper.

  • Place the tomatoes in the jar, & pour enough olive oil to fully submerge them. They should keep for six months in the fridge as long as they are always covered in oil.
  • Note: There is a word of caution re home preservation of tomatoes in oil from Greg at the bottom of this post. Do take a look at it. Thanks.

I received a note from a blogger, Greg @ GregCooks (see comments on this post). He had some words of caution re home reservation of tomatoes under oil, particularly when you add herbs or garlic to them. Though most of us would use the sun-dried tomatoes in oil within a week or two, I think Greg has a valid point. In his words, “I would caution people, though, that it is not safe to store food under oil at home. Botulism is a serious concern with this method. Commercial producers have ways to sterilize everything under the oil that is not possible to do at home. Let me add a few more words about botulism which comes from a common soil-born bacterium called Clostridium botulinum. Unlike other types of bacteria, this one thrives in low oxygen conditions and low acid conditions such as being submerged under oil. Commercially items preserved under oil are heated to 121 °C (250 °F) to kill the bacteria. Although the tomatoes are less prone to grow botulism due to its acid levels it can happen. It is more likely that it could grow on the other ingredients in oil such as the herbs and garlic. A week or two should be fine but I wouldn’t keep them longer than that.I think a better way to store your tomatoes for longer term is to wrap them tightly in plastic without the oil and store them in the freezer.But I think your dish wouldn’t be a problem in my home! I would eat them too quickly! “. So to be on the safer side, if you intend to keep them longer, keep them wrapped in plastic in the feezer sans oil.

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