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I can still picture standing in the kitchen my first summer in an apartment, talking on the phone with my mother. I called her a lot to ask how to do things! I just wanted the recipe for cream of potato soup, one of my favorites, and there she was explaining how to make a “roux” that can be used in other recipes… I rolled my eyes.
“Mo-om!” (You know, the two-syllable “Mom” that teenagers use in exasperation. I was still young enough to use that tone of voice.) “I only want the recipe, plain and simple. You don’t need to give me a whole cooking lesson.”

Well! Now that I will tell anyone I know that learning to make a roux (pronounced “roo” like Kanga) is a really easy, important step in cooking things from scratch. It’s the basis for not only my favorite childhood soup, but also wanna-be Pasta-Roni side dishes, “cream of _____” soups for casseroles, and homemade gravy. You use a roux to make an even fancier sounding word, a bechamel, which basically means a cream sauce. I’ve used that knowledge to fiddle with pasta and vegetables and more and create really great, simple dishes. Now it’s your turn –
How to Make a Roux
Use equal parts fat and flour. Melt the fat and whisk in the flour. It’s as simple as that! To make the bechamel (cream sauce), you just whisk in milk or cream and bring to a boil, stirring fairly constantly.
- 1 Tbs butter or olive oil (pan drippings if you’re going for gravy)
- 1 Tbs flour (white or whole wheat both work great)
- 1 cup whole milk (or part cream)
Increase the amounts depending on how much of the final product you need. If you want it thicker, use more flour.
The healthy fats (butter and whole dairy fats) make this recipe the perfect candidate for the final October Fest Carnival of Super Foods: Healthy Fat Recipes this Thursday.
1. Gently melt the butter so it doesn’t burn:
2. Whisk in flour:
3. Until it looks like pasty gunk:
4. UPDATE: (Thanks, Mom!) Cook for a minute to get rid of the “flour” taste, then slowly add the milk, whisking constantly to mix up the roux. (This is where you’d add broth or stock to make homemade gravy.)

5. Cook over medium-low heat, stirring as often as you can to prevent scorched milk, until bubbly and thickened. (I don’t know why I don’t have a picture of this step…must have gotten too many things going in the kitchen by this point!)
You can use the white sauce over pasta (add salt, pepper, spices and Parmesan cheese and you’ve got alfredo), make a baked chicken dish by adding cheese and jalapenos and pouring over chicken breasts, or use this knowledge to make cream of potato/vegetable soup.
Cream of Potato/Vegetable Soup
One of the things I love about cream of potato soup is its versatility. It’s a perfect mid-winter, mid-Lent meatless option, and it’s delicious enough that you don’t mind eating it in the summer either, especially with the bounty of fresh produce you find that time of year.
It’s also incredibly frugal and great for using up leftovers, like the bag of random vegetables I have in my freezer.
The other thing I love? The taste. Simplicity at its best!
I’ve posted this recipe before, but I’ve made some changes in the way I prepare it since then, and I’m excited to share the updates.
Ingredients
~4 potatoes
carrots
any other veggies you have on hand (broccoli, spinach, cauliflower, zucchini, green beans, corn…)
2-3 Tbs butter
4-5 Tbs whole wheat flour
2 cups whole milk (why full fat dairy?)
2 cups chicken stock (or additional milk if you want meatless)
salt, pepper, herbs to taste
Directions
Wash and cut potatoes (with or without skins – for taste’s sake, peel them, for health’s sake, leave the peels on), a few carrots, some broccoli, and other veggies. Boil the potatoes in salted water about 15 minutes or until soft.
I used to put the veggies right in the water too and use the veggie water to thin the cream sauce (to add nutrients, I had heard!), but now I understand that it’s not recommended to reuse cooking water if (1) you don’t use organic produce and (2) you’re using broccoli, kale, spinach, or cauliflower (and a few other lesser known cruciferous veggies). The chemicals from non-organically grown produce reside in the cooking water, and the oxalic acid and/or goitrogens (see this post for explanation) from the cruciferous veggies also sit in the water.
My solution to get all the vegetables cooked and do it nutritiously — and without adding extra dishes — is to get the potatoes going:
Then rest my steamer basket on top, either using its own tripod like above, or just sitting on the potatoes if there are too many:
And yes, this is a great opportunity to use some broccoli stems.
Meanwhile, as soon as you get your veggies on the stove, start your roux/bechamel. (It always takes longer than I think it will.) For potato soup, I usually use 2-3 Tbs butter, 3-5 Tbs flour (extra thick) and 2 cups milk. Once it is pleasantly thick, pour in a few cups of chicken broth for added nutritional benefits.
When the vegetables are all soft, add them to the creamy base using a slotted spoon. Just discard the cooking water.
Season with salt and pepper to taste (1 tsp or less salt and ¼-1/2 tsp pepper is safe). Other herbs like thyme, marjoram, basil and taragon are good to add flavor, too. Lately I’ve used about a tsp of marjoram and taragon, in case you’re not adventurous in the kitchen with trying your own measurements.

**This is a good recipe to play with…
- You can fry up some bacon and onions and use a little bacon fat for the roux, then add bacon to the soup and sprinkle with cheese for “loaded baked potato” soup.
- My dad calls it “end of garden vegetable soup” with potatoes, green beans, carrots and corn in August.
- Add a cup or two of shredded cheese, frozen corn and some ham and you have a cheesy ham chowder to die for.
You can make a basic homemade cream of chicken/mushroom base recipe (also see three easy casseroles in the above post).
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I’m always pleased to participate in:
- Tempt My Tummy Tuesday at Blessed With Grace
- Tasty Tuesday at Balancing Beauty and Bedlam
- Tightwad Tuesdays at Being Frugal
- The $5 Dinner Challenge
- Works for me Wednesday at We are THAT Family
- Pennywise Platter Thursday at The Nourishing Gourmet
- Frugal Fridays at Life as MOM
- Life as MOM’s Ultimate Recipe Swap – Quick Winter Dinners
- Teaching Kids About Money – Meatless Monday
Hungry for more? Related posts:
























This soup looks divine! I am most certainly going to try it!
I’m loving your blog, its theme and posts, as a fellow Catholic and cooking-lover!

Megan´s last blog ..Gratituesday: The Value of Human Life
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yummy!! i think i’m gonna add veggies to my potato soup to make it healthier!!

jsprik@blog-diggidy´s last blog ..Tempt My Tummy Tuesday….
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I use a roux for SO many things. It is a very helpful technique to know. This soup looks and sounds so good! I will be trying it very soon.
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I’m not usually a fan of cream soups but this sounds fabulous!!
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Great looking soup and a terrific lesson in roux!
Blessings!
Gail
Gail´s last blog ..Another Pie Day
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Katie, I am loving your blog! I have been going back and reading some of your past posts and trying to keep up with the current stuff. It’s all such great info and exactly what I need right now!!
Thanks for the potato soup recipe! It’s perfect timing for me, because my hubs wants me to make cheesy potatoes, but it calls for 2 cans of cream of potato soup and I am trying not to use the store bought processed foods so much and was wondering if I could just make a cream of potato myself to use in the recipe. I’ll definitely be trying this out!
I just recently learned to make a roux myself, and use it to make homemade mac & cheese, and I’m excited to begin to experiment with the many other uses for it. It is definitely one of the those simple, basic, must-know things for cooking from scratch!
[Reply to this comment]
Katie Reply:
October 28th, 2009 at 10:42 pm
Emily,
If you’re subbing for canned stuff, remember that’s probably condensed, so either use more of your potato soup and less milk than the recipe calls for, or make the potato soup super thick with extra flour. I’ve done it in a casserole before (subbed for canned) and it was better than ever! 
Yayyy! Welcome on board! I just love that some of these posts are just *when* people need them.
Katie
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Oh, yum! I Love potato soup!! THank you for sharing!
Sherry´s last blog ..Wordless Wednesday – Princess Parking
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FYI: Most references to roux that I have seen say to cook the flour/butter combination for a minute and to add the cold milk all at once. I have done it that way with success. The above flour/butter combination looks like it’s had some time to ‘cook’ the flour. I suspect that is to avoid a flour flavor.
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Katie Reply:
October 28th, 2009 at 11:04 pm
Excellent additional info. Um…thanks for the cooking lesson, Mom!
Good thing you’re around!
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Made this last night and it was a hit!!!
Anjanette´s last blog ..Introducing Cora Ruth
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Pennywise Platter Thursday 10/29 // Oct 29, 2009 at 4:34 pm
[...] Katie @ Kitchen Stewardship I’ve always billed this soup as under $2 a pot, versatile ingredient-wise and flexible enough to feed a crowd. You can use up leftover vegs that you freeze as you go in this cream of potato/vegetable soup. [...]
Good Reads: Candy Corn – Yea or Nay? : Domestic Cents // Oct 30, 2009 at 2:48 pm
[...] Stewardship presents My First Roux (And A Cream Of Potato Soup Recipe). Perfect for the chilly [...]
We LOVE a good roux – it’s a cooking staple!
Just a note for those with dairy allergies or sensitivities – this works just as well with soy margarine and soymilk as substitutes!
Jolyn @ Macomb Money Savers´s last blog ..Vince & Joe’s: November 2-8, 2009
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anne Reply:
March 14th, 2010 at 2:05 pm
thanks, so I assume rice milk works too?
I was wondering about the soymilk, so thank you!
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Katie Reply:
March 17th, 2010 at 12:27 am
Anne,
Katie
I wouldn’t know, but there’s nothing special about this being milk, instead of another liquid. Love to know if these alternative milks are tasty!
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Looks good!
Kimi @ The Nourishing Gourmet´s last blog ..The Healthy Dollar Menu & Gift Carnival
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we made something very similar this week – it was mighty tasty.
thanks for the tips on steaming the veggies – great idea.
SnoWhite´s last blog ..Christmas Cookie Favorites
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I can’t wait to try the soup. We need to mix it up a bit on these cold winter days here.
thanks for joining me this week. Spread the word, and I look forward to next week.
Staci
Staci´s last blog ..Meatless Monday Carnival – Kids in the Kitchen
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How to Make Fabulous Soup From Scratch Without a Recipe | Keeper of the Home // Mar 12, 2010 at 7:02 am
[...] for me is to heat up some oil in the pot, with no liquids added. It might be butter if I'm making a roux for a creamy soup, or just some coconut oil or beef tallow to fry up some onions and garlic [...]