Sunday, August 23, 2015

Ratatouille: step by step.

The New Rule of Ratatouille: Forget the Rules | Serious Eats
Tomatoes are a key ingredient, with garlic, onions, zucchini, eggplant, bell peppers, marjoram, fennel and basil, or bay leaf and thyme, or a mix of green herbs like herbes de Provence. /wiki/
I've come to realize that there's more than one way to make great ratatouille.
That's good news for all of us.
While many variations exist, ratatouille typically includes a mix of eggplant, summer squash (i.e., zucchini, yellow squash, and other soft-skin types), onion, garlic, bell peppers, and tomatoes stewed in olive oil. Herbs vary, and some folks hold very strong opinions about which ones they should and should not be, but among the most ubiquitous are basil, parsley, and thyme.

Why this recipe works
Cutting the vegetables into small dice means that every bite delivers deep, well-rounded flavor.
An optional step of pre-salting the eggplant and summer squash helps remove excess water from those vegetables, increasing the overall sweetness of the dish.
Cooking the vegetables separately allows you to control perfectly the level of doneness for each one; simmering them together briefly melds their flavors.

NOTES:
Canned whole tomatoes often provide some of the best quality you can get, but feel free to use a puree made from cooked fresh ones if they're good enough.
You can also peel, seed, and dice fresh tomatoes and use them in place of the puree; they will hold their shape more in the finished ratatouille, and their flavor will be more subdued.

Herbs are optional and can include all sorts beyond the ones suggested below; oregano, marjoram, and savory are also good options.
You can speed up steps 2 through 5 by cooking the vegetables individually in multiple skillets at once, then transferring them to a pot to finish cooking together.

The UK cups are 250 mls and US cups are 240 mls, so UK half cups are 125 mls whereas US half cups are 120 mls (quarter cups tend to be the same at 60 mls).
However for most recipes the difference is small and won't affect the finished dish.
Summer squash sliced - 1 cup = 125 g. (175g)

The salted eggplant and squash produced ratatouille with more depth and sweetness.
The effect isn't drastic enough for me to say that you absolutely must pre-salt those vegetables—if you don't have time, go ahead and skip it.

I had to conclude that cooking the vegetables separately makes a small difference, which is worth doing if you really value keeping each vegetable more distinct, but not absolutely essential.
Add each vegetable to the pot in a sequence based on roughly how long they need to cook, starting with the onion and garlic, then adding the bell peppers soon after, followed by the squash and eggplant, and finally the tomato.

INGREDIENTS
- 3 cups/500 grams 6 mm (1/4-inch) diced summer squash, such as zucchini and yellow squash (about 4 small or 2 medium squash) (1 cup 125 g)
- 3 cups 6 mm (1/4-inch) diced Italian eggplant (about 1 medium eggplant)
- Kosher salt and freshly ground black pepper
- 3/4 cup (3 tablespoons x 4 = 12 tablespoons) extra-virgin olive oil, divided, plus more as needed
- 3 cups 6 mm (1/4-inch) diced yellow onion (about 3 medium onions)
- 6 medium cloves garlic, minced (about 2 tablespoons)
- 3 cups 6 mm (1/4-inch) diced red and yellow bell pepper (about 4 large peppers)
- 2 cups pureed canned whole tomatoes, with their juices, from 1 (28-ounce - 793.79 grams) can (see note above)
- 1 bouquet garni (herb bundle), made from fresh herbs such as thyme, parsley, and basil, tied together with butcher's twine (see note above)
Chopped fresh parsley leaves and tender stems, for garnish (optional).


DIRECTIONS
- Place summer squash in a wire mesh strainer set over a bowl; place eggplant in a second wire mesh strainer and set over a second bowl.
Toss both with a liberal amount of kosher salt and let stand to drain at least 15 minutes and up to 1 hour.
Discard any liquid that collects in the bowls...Dump 'em.

- In a large skillet, heat 3 tablespoons olive oil over medium-high heat until shimmering.
Add onion and garlic, season with salt, and cook, stirring, until softened, about 6 minutes.
Scrape onion and garlic onto a rimmed baking sheet and spread in an even layer to cool for 3 minutes.
Transfer onion and garlic to a large pot.


- Meanwhile, add 3 more tablespoons olive oil to skillet and heat over medium-high heat until shimmering.
Add bell pepper, season with salt, and cook, stirring, until softened, about 7 minutes.
Scrape bell pepper onto the rimmed baking sheet in an even layer to cool for 3 minutes.
Transfer bell pepper to pot with onion.


- Add 3 more tablespoons olive oil to skillet and heat over medium-high heat until shimmering.
Add summer squash and cook, stirring, until softened, about 4 minutes.
Scrape onto rimmed baking sheet in an even layer to cool for 3 minutes.
Transfer to pot with onion and bell pepper.


- Add remaining 3 tablespoons olive oil to skillet and heat over medium-high heat until shimmering.
Add eggplant and cook, stirring, until softened, about 4 minutes; add more olive oil as needed if skillet dries out while cooking eggplant.
Scrape eggplant into pot with other vegetables and stir to combine.



– Set pot of vegetables over medium-high heat and stir in tomato puree and herb bundle; heat until ratatouille is gently bubbling, then lower heat to medium and cook, stirring, until tomato puree coats vegetables in a thick sauce, about 15 minutes.
The tomato flavor is more pervasive when added as purée, since it glazes every other vegetable in the dish. Alternatively, you can diced fresh tomato. I prefer the purée.

Discard herb bundle.
Season with salt, stir in chopped parsley (if using), and drizzle with a small amount of fresh extra-virgin olive oil.
Serve right away, or chill and serve either reheated, slightly chilled, or at room temperature.

And more: Classic Ratatouille | Essential Pepin

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