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Martha Stewart shares her best tips, tricks and techniques to make cooking vegetables easier and ensure they come out perfectly every time. Learn her genius (and surprisingly simple) hack for cutting onions without crying, how to safely slice tricky vegetables like cabbage and squash, and even how to select the freshest and most flavorful produce at the grocery store.

Plus, Martha reveals the secrets to a rich, flavorful homemade vegetable stock—including which ingredients can make it “stinky” and the common mistake you might be making—along with expert techniques for roasting, slicing, prepping, and more. Whether you’re mastering the basics or sharpening your skills, these simple tricks will help you cook vegetables with confidence.
Transcript
00:00The lesson plan for today, the simple yet tasty raise, I like to prepare my favorite vegetables.
00:05You can pretty much add what you like to vegetable stock, and I am going to brown half of a
00:12white
00:13onion. Use mild-tasting vegetables if you want a nice mild-tasting rich broth. Onions, celery,
00:21mushrooms, leeks. Avoid strong-tasting vegetables like artichokes, spinach, cruciferous vegetables
00:27like cabbage or broccoli or cauliflower. Those strong flavors will really overpower a stock,
00:33and it'll actually make what I call a stinky stock, which you don't want. And just cut these
00:40up into small pieces. When I add the carrots and the celery, we have our mirepoix. So now we can
00:48add water to cover. I would say somewhere between eight to ten cups. Eight sprigs of flat-leaf parsley,
00:56eight sprigs of basil, and some fresh thyme. This is one stock that you will season with salt,
01:03three-quarters of a teaspoon to start. So bring that to a boil, reduce heat to a gentle simmer,
01:08and cook uncovered for one hour. The brief cooking time of vegetable stock ensures that flavors are
01:15extracted but not lost. You can strain this lovely vegetable stock. I'm not even using cheesecloth
01:22because I don't think we have to. You have a very flavorful, beautiful vegetable stock.
01:28How to julienne a carrot. Peel your carrot and trim the ends. Cut crosswise into even lengths.
01:35Thinly slice from one side to create a flat surface to prevent the carrot from rolling.
01:40Turn it so it's flat side down and thinly slice lengthwise. Stack the slices and cut lengthwise
01:47again into thin strips. This is called julienning. When you're choosing asparagus in the store,
01:55always look for a very green stalk, a closed tip. You know asparagus are part of the lily family,
02:02and when you look at that, you can really sort of see a lily bud right at the tip. But
02:07always make
02:08sure that the tip is unblemished and very tight, and that these little points are tightly attached
02:16to the stem. If they have deep ridges in the stalk, you know that they've been out of water and
02:22cut a
02:22long time ago. Also, look at the bottom of the asparagus. See if it's green or dried out. This is
02:29a
02:29nice, smooth bottom. And cut off a little bit of the bottom, and you can see it's all juicy and
02:36nice
02:36and smooth. This is a medium-type asparagus, and this is a gigantic thick asparagus. I like this kind
02:45of asparagus. I like to make a meal of it. But a lot of people also like the very thin
02:50pencil asparagus,
02:52which are very popular. But you should choose them the same way that you choose the larger varieties.
02:57Always make sure that tip is dry and closed. If it starts to open, you know you have an old
03:04asparagus.
03:05So many recipes that we use on an everyday basis call for onions. And so many of us start to
03:11cry the
03:12minute we start to slice, dice, or chop. Well, here's an easy solution to prevent crying. Slice onions as
03:19close to an open flame as you possibly can arrange. You can use the flame of a candle, or you
03:26can work close
03:27to the stove. I'm on a small breadboard right next to a high flame on my gas stove. And then
03:33you can
03:33chop up to 20 or 30 pounds of onions, as I used to do when I was catering, without shedding
03:38even a tear.
03:40How to blanch vegetables. Add a generous amount of salt to a pot of boiling water. Cook one variety
03:46of vegetable at a time, and you'll want to give them a stir. You'll know they're done when the
03:51color is set and they're just tender. Fill a large bowl with iced water. Add a sieve or colander to
03:57the
03:57bowl. Remove the vegetables from the pot using a spider or a slotted spoon, and plunge directly into
04:03the iced water. This will prevent them from cooking any further. Pat them dry. This is a process that
04:08can be used for many vegetables. Now for this Tian, I've looked for firm small to medium vegetables.
04:16Skin on squash should be unblemished. And cut off the stem end, and cut in uniform slices. Now if you're
04:24going to use eggplant, and I think eggplant is very delicious in a Tian, look for the Japanese if you
04:30can.
04:30So this is a very pretty eggplant. It's a nice color skin and a very white, mild flesh. And tomatoes.
04:38I'm using plum tomatoes because I find them less juicy but still very flavorful, and they have a lot of
04:45meat. Oh, and here's a red onion. A sharp knife is essential when cutting vegetables like this.
04:52And now olive oil. It's time to assemble. I'm going to start with the onion and tomato. And salt and
04:58pepper
04:59as you go along. And now on the sides, I'll do yellow squash, eggplant, green squash. You can put a
05:07few branches of thyme on the top. A little bit more olive oil. Now before I put this into a
05:13400 degree
05:13preheated oven, I'm just going to put a few garlic cloves on top. These will roast in the skins. So
05:21there,
05:22400 degrees for 25 minutes. You can baste with the pan juices and a brush and then bake for another
05:2925
05:29minutes. Oh boy, look at how beautiful these are. Now this is a little bit difficult to do. You must
05:37have
05:37a very, very sharp knife to cut this in half. There we go. Now we are going to take out
05:45all these seeds.
05:48So cut this into wedges about an inch thick at the widest. Two tablespoons of olive oil all over the
05:57squash. Coriander, a quarter of a teaspoon. Quarter of a teaspoon of cumin. And about an eighth of a
06:05teaspoon of cayenne pepper. Toss this and try to coat each wedge with the oil and the spice. Oh, don't
06:14forget salt and pepper. Have your oven preheated to 425 degrees.
06:21And spread this in one layer and we're roasting directly on the metal instead of on parchment or
06:28something because we really want the squash to brown. Now this will be roasted for about 30 minutes
06:35flipping once. So the squash is roasted for 30 minutes. Now if you can pierce it easily with the
06:42point of a knife and this pierces extremely easily, just like butter, you can be assured that it will
06:50be done enough to eat. And just arrange it on a serving platter and it's ready to serve.
06:59How to slice cabbage. Cut the head in half through the core. You'll want to remove the triangular shaped
07:04core. To do this, cut into the core at an angle where the core meets the cabbage leaves and remove.
07:12Then place cabbage cut side down on your cutting board and thinly slice the cabbage from top to
07:17bottom. If you were cutting the cabbage into wedges for braising or roasting, you'd want to leave the
07:23core in to hold the leaves together. But you do want to trim the stem and cut a little bit
07:28of the core,
07:29which can be tough. Then cut through the core into wedges and the wedges are ready to be cooked.
07:35And now our other vegetables. I like parsnips a lot. They have a very nice nutty flavor. Cut this in
07:43half
07:44and then lengthwise. Carrots. Simply prepare. Just lightly peel them. All of these carrots can go end
07:55like that. The rest of the parsnips. Shallots peeled and cut in half. Some rosemary. Just the leaves. And
08:04oh, a couple tablespoons of olive oil. And it really adds more flavor and promotes browning. And don't
08:13forget, some black pepper, freshly ground, and some coarse salt. And all you use to roast is a cookie sheet.
08:22You can do it on parchment if you're lazy and don't want to scrub a cookie sheet. But I find
08:27that
08:28actually vegetables brown a little bit better on the metal. And don't overcrowd the pan.
08:33And into a 450 degree oven for approximately 30 to 45 minutes.

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