Sunday, January 27, 2008

Pumpkin soup two ways

Sometimes you come across a familiar food in an unfamiliar setting, a food you'd written off as gross or weird, and discover that you like it. Pumpkin was one such revelation for me, in the form of pumpkin soup one of my dad's colleagues brought to our house when we spent the summer of 1996 in New Zealand.

At the bottom of the world, living in winter when I thought it was summer, I was ready to give something new a try, and I was hooked within two spoonfuls. When I thought of pumpkin, I thought of the dessicated inside of a jack-o-lantern, not something you'd eat, and the rich warmth of the pumpkin took me by surprise. The flavor was complex but smooth, and it was perfect for the cool, damp New Zealand winter. People kept apologizing to us for the "terrible weather," but by our standards it wasn't all that bad—50 degrees and rainy? People from the northeast United States will take that anytime over ice and snow.

A little more than five years later, it was winter in New York, and I was thinking, as I often do, of pumpkin soup. It's one of those food archetypes that gets lodged in my brain when I'm hungry, along with real Long Island pizza, crispy roasted potatoes, tapioca pudding, and ripe summer tomatoes. I googled "pumpkin soup" and got a lot of recipes involving whole pumpkins. A whole pumpkin? Cue jack-o-lantern mental imagery. Where was I supposed to get a whole pumpkin? And I had a small kitchen in a Barnard dorm—how was I supposed to dismantle said whole pumpkin? Oh, and I didn't own a blender, which seemed to be necessary.

I panicked a bit and got grouchy, and then I read through the recipes and did something I've often done since—I made a makeshift version of the real thing using a few shortcuts. Not a bad thing to do when you don't know what you're doing. I went to Appletree Supermarket (supermarket is overstating the case a bit, but I have a serious soft spot for Appletree even so) and grabbed a few things and was ready to go.

Plimpton Hall Pumpkin Soup

1 can pumpkin pie filling
1 can chicken broth
few splashes whipping cream
salt and pepper to taste

In a medium saucepan, heat the chicken broth. I'm picky about chicken broth and only like College Inn and Swanson brands. They taste the best by far. Don't be duped by the store brands at Trader Joe's and Whole Foods—they are inferior.

Dump in the pumpkin. Stir until blended. Heat until, well, hot.

Transfer to a bowl. Stir in a few splashes of cream (enough to flavor the soup but not enough to significantly change the color or texture) and salt and pepper to taste.

Eat while doing the readings for class tomorrow.


Fast forward again, this time to my life post-college. I've spent a semester in Dublin and have become enamored of the pureed vegetable soups that are common in Ireland, and I own a blender. I spend several winters pureeing vegetables left and right with varying results. I'm so into pureed soups that my roommate gives me an immersion blender for Christmas.

What follows is the butternut squash-dominated soup I made the other night for the trial run of the immersion blender. Squash has a nice warm flavor that works particularly well in this kind of soup. You can mix up the vegetable combinations and proportions to suit your taste, being mindful of the interplay of different flavors and textures, but I think this version is one of the best I've come up with. The principle of pureed vegetables and broth is similar to the Plimpton Hall Pumpkin Soup, but the result is more nuanced (which is not to say I wouldn't make the Plimpton soup again in a pinch!).

The basic recipe is adapted from one in Darina Allen's Irish Traditional Cooking, a really fun book that's part cookbook, part history lesson.

Pureed Vegetable Soup

approx. 2 lbs. peeled and chopped butternut squash
approx. 1 lb. chopped winter vegetables (turnip, carrot, potato, parsnip, etc.)
4 or 5 shallots, chopped
3 tablespoons unsalted butter
2 14-ounce cans chicken broth, or the equivalent amount of homemade stock
whipping cream
salt and pepper
parsley for garnish

Chop the vegetables and peel as necessary or desired and transfer to a bowl. I prefer my potatoes with the skin on, which means you have to wash them well. I cheated by buying peeled and diced butternut squash, which should be easy to find, but it's not that much trouble to peel and chop a squash (use a knife to peel it). I recommend shallots over regular onions because their flavor is more delicate. If you use carrots, take it easy because they can overwhelm the other vegetables and will turn the entire soup orange (not a concern with the squash base, but something to be aware of). I don't really care for parsnips, but I mentioned them here because some people like them and they would be an appropriate ingredient if you liked them.

In a dutch oven or large, deep saucepan, melt the butter (I always use unsalted). When it is melted and begins to foam, add the vegetables, being careful not to splash yourself with hot melted butter (drop handfuls in very close to the surface of the pan). Stir the vegetables to coat evenly with butter. Cover the pan and allow it to sweat for 10 or 15 minutes until the vegetables are shiny and are starting to look a little cooked.

Meanwhile, heat the chicken broth in a separate saucepan. You can use water, but I wouldn't because the flavor of the soup won't be as strong or complex.

Carefully pour the warm broth over the vegetables. Stir gently and cover the pot. Cook for 20 minutes or so until the vegetables are tender but not overcooked. If you overcook them, they'll begin to loose flavor and texture. The texture of the vegetables is important to the texture of the puree.

Veggies simmer

The next step is pureeing the soup. You can do this three ways: with a foodmill, with a regular blender, or with an immersion blender. I don't own a foodmill, so I have no direct experience with that method. If you use a regular blender, transfer the soup a few ladlefuls at a time into the cannister of the blender. Puree at a low-ish speed while holding the lid on tight. Transfer the pureed soup to a bowl.

If you have an immersion blender, just puree the soup right in the pot. Be careful not to splash yourself or to nick the pot if you're using nonstick, and make sure you get all the vegetable chunks (stir around to find them). I thought the immersion blender took a bit longer than the regular blender, but it seemed to keep the soup at a higher and more uniform temperature, and the texture was just right.

In any case, make sure the soup really is pureed and not just finely blended. It should be smooth and uniform in color and texture. Taste a spoonful—it should be velvety and not at all chunky. It's OK to feel the vegetable fibers a bit, especially if you didn't peel the potatoes, but you shouldn't have to chew.

Vegetable soup

Transfer the soup to serving bowls and stir in a dash of cream. This is not strictly necessary but is a nice touch for flavor and texture, and you can substitute sour cream, creme fraiche, plain yogurt, half and half, or even milk to similar effect (I wouldn't bother with skim milk, though, because it's too watery). Garnish with the chopped parsley and serve with green salad and bread for dipping, mopping, and whatever else you like to do with your soup.

The soup freezes well and is great when reheated for lunch. I freeze leftovers in serving-size containers and defrost and reheat on the stove. Start by soaking the container in a bath of hot water, and liberate the soup when the edges have melted enough to make it easy to remove.

Because dairy doesn't freeze well, don't stir in cream if you intend to freeze the soup. You should add it to the defrosted soup just before you eat it, just as you add it to the soup just before you eat it when it's first prepared.

3 comments:

Anonymous said...

Or you can puree in a food processor, but don't fill past the "liquid fill line." You'd think that would be obvious, but it wasn't for me, and I'm still finding little splotches of beet soup in our kitchen.

Anonymous said...

oh, AND, you could probably use pumpkin instead of butternut squash in that second soup. Just be sure to use a pumpkin that's labeled "sugar" or "pie"-- I think because regular carving pumpkins are pumpkin/squash hybrids. In any case, they taste bad. Another lesson learned the hard way.

Katy said...

Yeah, I'm still not brave enough to attack a pumpkin. I think they're easier to find in supermarkets and farmers markets in the fall in the northeast, but butternut squash seems to be a staple throughout the winter, and I suspect it's easier to deal with.