Sweet Potato-Harissa Hummus

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It’s sweet potato season, and I’m committed to finding ways to enjoy this vegetable that grows prolifically in my state of North Carolina. Sweet potatoes are incredibly versatile and highly nutritious, yet they frequently get turned into something that looks like dessert, especially around Thanksgiving. I’m picturing that marshmallow crusted calorie bomb that everyone calls a casserole. Or my own classic sweet potato dish with loads of butter, brown sugar and pecans. Come to think of it, that one is quite delicious. It’s probably why I turned it into a signature cocktail a couple of years ago. But I digress.

Anyway, today I’m honoring the savory nature of sweet potatoes with an easy-to-make hummus, embellished with roasted sweet potato and harissa. It’s a fun little twist that celebrates the health benefits of sweet potato— antioxidants, potassium and lots of fiber— with just enough Moroccan spice to make it interesting and unique.

A little swirl of olive oil at serving time is the perfect finish.

I happened to mention this hummus recently when we were out to dinner with friends, and they were so intrigued that I’ve decided to make it again when they come over for cocktails and appetizers in a couple of weeks. I’m determined to heed my own advice about carving out time to get together with friends more frequently, even if it’s only for a casual bite (or maybe especially so). It’s the company that matters most, and who doesn’t love appetizers? Come along and I’ll show you how easy this one is!

Ingredients for hummus

Gather up a few key ingredients, including: garbanzo beans, which I like to call “chickpeas;” tahini, which is a thin sesame seed paste; olive oil and some seasonings. You’ll need a food processor or a good strong blender to make it, though I would not recommend using a bullet-style blender. The mixture will be somewhat hot, so you need to vent the container you use to blend it. If you only have a bullet blender, let it cool before you get to that step (for safety sake).

I generally take the shortcut of using canned chickpeas, but freshly cooked is probably even better— just be sure you cook them tender enough to blend well, and hold back some of the cooking liquid, too. Here’s a bit of good news for readers with certain legume allergies, including my high school bestie, who cannot eat chickpeas, soybeans or lentils. You can absolutely make hummus with other canned beans, including cannellini, which I think are divine! They are softer than chickpeas so a few adjustments are needed, and I’ll spell those out in the click-to-print recipe card you’ll find at the end of this post.

The process for making hummus

One burning question my friend, Charlotte, asked when I shared the exciting news of this sweet potato hummus was, “did you peel the chickpeas?” And this is a fair question, given that some traditionalists say it’s necessary. The answer is no, though I have done it once and I found it to be a complete waste of 90 minutes, only to end up with a pile of chick peas roughly half the size of when I started and a huge pile of skins that went straight to the trash. The theory behind this frustrating and tedious step is that the thick skins hinder achieving the smooth, silky texture that is so wonderful about hummus. And it’s true that the skins can be a little chunky, but I have an easier way around that.

My first tip is to look for chickpeas that don’t have “calcium chloride” listed as an ingredient. This additive helps beans hold their shape during the high-temperature canning process, and it may be fine if you intend to put the beans on a salad or crisp them up as a topping for something. But for hummus, you want them to blend smooth, so avoiding calcium chloride will help you get there. The easiest route to avoiding it is to pick up a can labeled “organic.”

My second tip is simple— heat the garbanzo beans in their liquid before blending, and add a pinch of baking soda to soften up the skins. Dump the entire can (liquid and all) into a small saucepan over medium low heat and let them go until you see small bubbles and steam coming off the pan. Strain the chickpeas through a mesh strainer, but keep the liquid because you’ll need some of it for blending.

Let’s make sweet potato hummus!

Save the other half of the sweet potato for another recipe, or share it with a very good dog if you have one.

Use the large bowl of a food processor (or a good blender with the vent cover off) to combine the warm chickpeas plus a little bit of the liquid, half a roasted sweet potato, some tahini and salt. Pulse several times until you have a somewhat smooth mixture of hummus. This was my first shot at using harissa in hummus, so I gave it a quick sample test and found it to be a great pairing with the sweet potato! If you are not familiar with harissa, it’s a spicy chile pepper paste common to Morocco and other mideast cultures. It usually includes some variety of chiles, plus garlic and seed spices, such as caraway, coriander and cumin.

This brand of harissa is labeled “spicy,” but don’t you believe it. I barely tasted any heat at all and my husband said the same. If you are sensitive to capsaicin heat, be sure you evaluate the level in your harissa and use your judgment on how much can be added without it sending you to the ER. If your body can’t take capsaicin at all, simply omit it. The sweet potato hummus is delicious without further embellishment.

Once you have the consistency right, stream in olive oil with the processor running.

For this final step, scrape down the sides of your processor bowl and then run it continuously until the hummus is a silky consistency. If you find the mixture to be too stiff, stream in a little more of the chickpea liquid and process again. Keep in mind that the hummus will be thicker once it’s chilled. Drizzle in olive oil while the machine is running. When it is smooth to your liking, give it one more taste test and adjust seasoning as needed. For mine, I decided to add a few shakes of onion powder to emphasize the savory flavor of the harissa, but I’ll leave that up to you.

Would you try this sweet potato and harissa hummus? What are your favorite appetizers for sharing with friends at home? 

Sweet Potato-Harissa Hummus

  • Servings: Makes about 2 cups
  • Difficulty: Average
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This is a fun, savory twist on classic hummus, using harissa paste from Morocco and seasonal sweet potatoes. Other beans may be substituted for chickpeas as noted.


Ingredients

  • 1/2 cup roasted sweet potato
  • 15 oz. can organic garbanzo beans (chickpeas)*
  • 1/8 tsp. baking soda
  • 3 Tbsp. tahini paste
  • 1/4 tsp. kosher salt
  • 3 Tbsp. harissa paste (see notes)
  • 2 Tbsp. extra virgin olive oil
  • 1/4 tsp. onion powder
  • Crackers, crostini or pita chips for serving

Note: Hummus may also be made with other canned beans, such as navy, Great Northern or cannellini. These alternative beans will be softer than chickpeas, so plan to adjust your liquid amounts accordingly. I still recommend warming them before blending for the smoothest consistency.

Harissa paste varies significantly by brand in both heat and thickness. Take note of the heat intensity before you add it to your hummus, so you may adjust the amount to suit your taste. My brand was Mina, labeled “spicy,” but had almost no heat at all. I’ve purchased other brands of harissa that were extremely hot, so it bears checking.

Directions

  1. Pour entire can of garbanzo beans (including the liquid) into a small saucepan over medium-low heat. Add baking soda and bring to simmer until you notice light boiling around the edges and steam rising from the pan. Remove from heat and strain the beans, reserving the liquid.
  2. Add beans, plus about 1/4 cup of the liquid, to the large bowl of a food processor or blender (with vent cover removed). Add sweet potato, tahini and salt to the processor and pulse several times until the mixture is blended but still slightly coarse. Use a spatula to scrape down the sides of the processor bowl.
  3. Add harissa to the processor and pulse a few times. If the hummus seems too thick, add another tablespoon or two of the chickpea liquid to attain desired consistency.
  4. Run the processor consistently while you drizzle the olive oil into the chute. Give it a final taste test, adjusting as needed with onion powder, garlic powder, salt and/or pepper. This hummus is best after refrigerating for a few hours, and it will firm up a bit in the fridge.

Harissa Tomato Soup

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Raise your hand if you got a jar of harissa in your Christmas stocking this year. Really, I’m the only one? 😂 Sincerely, I love that my husband sneaks fun foodie surprises into my gifts, because it sets me up for interesting flavor adventures throughout the coming year.

I’m here to tell you, this isn’t that spicy. 😏

Harissa, if you’re not familiar, is a Moroccan concoction made with roasted red peppers— ranging from sweet to hot—along with garlic and what I like to call the “C spices” of cumin, caraway and coriander. It’s a complex blend of flavors that can be used in a marinade or added directly to a meat or vegetable dish to perk up the flavors. It is typically quite aromatic and spicy, so a little usually goes a long way.

This jar of harissa has already served me well because it transformed what would otherwise have been an ordinary bowl of tomato soup. If you’re bored in the kitchen and tired of making the same things over and over, this post should inspire you to see how easily you can change things up with one ingredient swap or addition. A couple of generous spoonfuls of harissa, along with accompanying spices, elevated this simple, made-from-canned-tomatoes soup to such a degree that Les and I devoured the entire batch in one sitting.

I will confess here that I did not find this particular brand of harissa as flavorful as some others I have tried, including the one carried by Trader Joe’s. My first taste of harissa was during the few years that I worked in a specialty olive oil store. Our harissa-infused extra virgin olive oil was bold, spicy and flavorful, and this jar of harissa paste didn’t quite measure up in the flavor (or heat) department. Still, I found it a good base, which I jazzed up with more of the other flavors I expected— namely hot pepper flakes, cumin and caraway— and this soup did not disappoint!

Most harissa I’ve tasted had distinct heat and spice flavors, so I added them myself!

The base of any good tomato soup, of course, is tomatoes! And given that fresh tomato season is still about four months out, I reached for a big can of San Marzanos. I’ve learned the hard way that lesser quality tomatoes don’t have the same depth as real San Marzanos, so choose well. I whizzed these up in my George Clooney blender (so named because it is tall, handsome and versatile), and then I added it to lightly sautéed onions and garlic along with a few tablespoons of the harissa.

I usually blend my soup after simmering, but blending them first this time kept my soup a vibrant red color!

As with any recipe, I followed the advice of every culinary expert I respect, by seasoning every layer— during sauté of the onions, preparing the tomatoes and building the soup over heat. Salt has more purpose than just flavor, and if you miss seasoning the layers of a recipe, you may end up with a meal that tastes under-seasoned and over-salted at the same time.

There’s more to salt than flavor. “Season every layer” is one of the most important rules in my kitchen.
The spices added a familiar flavor boost to this milder brand of harissa. Simmering helped the flavors meld.

For a rich finishing touch, I melted in about a tablespoon of butter just before serving— borrowing a trick from the playbook of Italian chefs. This may have been the best tomato soup I’ve ever made, and I give credit to the harissa, if only for inspiration. I mentioned earlier that we devoured the whole pot that night. But that’s not quite right. I saved about a quarter cup, which I had in mind for a miniature shakshuka for breakfast the next day, and, no surprise, it was also delicious!

Next time, I’ll make a whole batch of shakshuka with harissa. This was divine!

Harissa Tomato Soup

  • Servings: 4 cups
  • Difficulty: Average
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It's amazing that a few tablespoons of harissa can elevate a classic soup so much, but it really does!


Ingredients

  • 2 Tbsp. extra virgin olive oil
  • 1/2 medium onion, chopped
  • 2 cloves garlic, minced
  • A few shakes red pepper flakes (I used Flatiron Pepper’s Uç Biber variety)
  • 28 oz. can real San Marzano peeled tomatoes, pureed in blender briefly with a pinch of salt
  • 2 Tbsp. Mina brand harissa paste
  • 1/2 tsp. ground cumin
  • 1/2 tsp. ground caraway seed
  • Salt and pepper for seasoning each layer
  • 1 Tbsp. unsalted butter

My recommendation for adding red pepper flakes, cumin and caraway is based on the mild nature of this particular harissa. If you use another brand with more flavor, adjust additions accordingly.

Directions

  1. Heat a heavy-bottomed pot over medium heat. Swirl in olive oil and sauté onions until slightly softened. Season with salt and pepper to aid in releasing moisture from the onions. Add red pepper flakes and garlic and cook another minute or so.
  2. Pour the puréed tomatoes into the pot with the onions. Add the harissa and stir to combine. Add a pinch of salt and the ground cumin and caraway. Bring the mixture to a low boil, and then reduce heat and simmer for approximately 30 minutes (longer if you have time). Give the soup a taste and adjust seasonings as needed.
  3. Just before serving, stir in butter.