I first met this soup on a chilly November afternoon at a small market kitchen, and it immediately felt like the kind of recipe you keep returning to. The Jerusalem artichokes—knobby, earthy, slightly sweet—melt into a silky, comforting broth, while quick garlic croutons add the crunch that makes every spoonful interesting. It’s straightforward and honest cooking: simple steps, reliable results.

This version leans on a short ingredient list and a modest technique so you can focus on clean flavors. The method is forgiving, which means it’s a good kitchen companion whether you’re cooking for one or a small group. I’ll walk you through the steps, explain why I rely on it, and offer swaps and troubleshooting tips so you can make it your own.

No showy techniques here—just thoughtful, practical notes. If you like soups that feel like a warm sweater and a good book, you’ll appreciate how this one comes together quickly and keeps well, too.

Ingredient Breakdown

2 teaspoons olive oil — Starts the sauté; helps soften the aromatics without browning too fast.
1 tablespoon butter or vegan butter — Adds silkiness and a round, nutty flavor to the base.
1 onion, diced — Provides sweetness and body when cooked until translucent.
2 cloves garlic, minced — A little garlic brightens the soup; added later so it doesn’t burn.
500g Jerusalem artichokes, peeled or scrubbed and thinly sliced — The star ingredient; thin slices cook faster and blend into a creamy texture.
750ml vegetable stock/broth — The cooking liquid; choose one you like since it defines the soup’s baseline flavor.
Salt and pepper — Essential seasoning; used during cooking and adjusted at the end.
2 thick slices bread, cut into ½-inch (1cm) pieces — For quick garlic croutons; they add the necessary crisp contrast.
1 tablespoon olive oil — Tossed with the bread pieces before baking so they crisp evenly.
¼ teaspoon garlic powder — Sprinkled on the croutons immediately after baking for a punch of garlicky flavor.
Extra virgin olive oil — Drizzled over finished bowls to add fruitiness and a glossy finish.

Jerusalem Artichoke Soup Made Stepwise

Preheat the oven to 350°F (180°C). Arrange the ½-inch (1 cm) bread pieces in a single layer on a baking sheet. Drizzle with 1 tablespoon olive oil and toss or turn the pieces to coat evenly. Bake 5 minutes or until golden and crunchy. Remove from the oven and immediately sprinkle with ¼ teaspoon garlic powder and season with salt and pepper to taste; set aside.
In a medium pot over medium heat, add 2 teaspoons olive oil and 1 tablespoon butter (or vegan butter). Heat until the butter melts.
Add the diced onion and sauté, stirring occasionally, until soft and translucent (about 5 minutes).
Add the thinly sliced Jerusalem artichokes and sauté 4–5 minutes, until they begin to soften.
Add the minced garlic and cook, stirring, for about 30 seconds until fragrant.
Pour in 750 ml vegetable stock. Increase heat to bring the pot to a gentle simmer. Once simmering, cover, reduce the heat to maintain a gentle simmer, and cook 20 minutes, until the Jerusalem artichokes are very soft.
Remove the pot from the heat. Season with salt and pepper. Using a handheld (immersion) blender, blend the soup in the pot until just creamy and smooth—do not over-blend.
Taste and adjust seasoning with more salt and pepper if needed.
Serve the soup in bowls, drizzle with extra virgin olive oil, and top with the garlic croutons.

Why It’s My Go-To

This soup sits in my rotation because it’s dependable and flexible. Jerusalem artichokes have a distinctive, sweet-earthy flavor that turns velvety when cooked and pureed. The texture is luxurious without relying on cream, which makes it feel lighter but still indulgent.

The recipe is built to be forgiving. Sauté until translucent, simmer until tender, and blend until smooth. The croutons are a small detail with a big payoff: a tiny time investment that improves the overall experience. I reach for this when I want something comforting but not heavy, or when I want to highlight seasonal produce without fuss.

Swap Guide

Simple swaps using what’s already in the recipe

Butter or vegan butter — Use whichever you prefer; both add richness. If you omit the butter, increase the olive oil by a teaspoon to prevent sticking.
Vegetable stock/broth — Any stock you like will work. Keep the volume the same so the cooking time and texture match the directions.
Bread for croutons — Use whatever sturdy bread you have: country, sourdough, or even day-old slices cut into pieces. The size should match the ½-inch (1 cm) guideline so they crisp evenly.

Cook’s Kit

Tools that make this easy

Medium, heavy-bottomed pot — for even heat and steady simmering.
Baking sheet — for a single-layer spread of croutons.
Handheld (immersion) blender — blends directly in the pot so you skip transfers and extra dishes.
Sharp knife and cutting board — thin, even slices of the artichokes help them cook uniformly.

What Not to Do

Don’t rush the sauté stage. If the onion hasn’t softened before you add the Jerusalem artichokes, you’ll miss building that foundational sweetness. Avoid high heat when you add the garlic—the 30‑second rule in the steps is deliberate so the garlic becomes aromatic without turning bitter.

Don’t over-blend. The directions say to blend until “just creamy and smooth—do not over-blend.” Overworking the soup can make it gluey and change the mouthfeel. Pulse with the immersion blender and stop as soon as the texture looks velvety.

How to Make It Lighter

If you want to shave calories or fat without sacrificing satisfaction, focus on two small changes. First, skip the tablespoon of butter (or use the vegan option in smaller quantity) and rely on the 2 teaspoons of olive oil for sautéing. Second, use a low-sodium vegetable stock so you control the salt, and season minimally at the end.

The croutons are optional. If you skip them, add a squeeze of lemon or a scattering of fresh herbs at the end (no additional fat required) to brighten the bowl. These small adjustments keep the character of the soup while trimming richness.

Cook’s Notes

Texture and consistency

The recipe’s 750 ml of stock gives a medium-bodied soup that still feels substantial. If you prefer it thinner, add stock a splash at a time after blending until you reach your preferred consistency. If you want it thicker, blend less and serve immediately.

Peeling Jerusalem artichokes

These tubers can be scrubbed if the skin is thin and clean; peel them if the skin is rough. Thin, uniform slices accelerate cooking and produce a smoother puree. I keep a bowl of water nearby to drop slices in if I’m prepping a lot; they can discolor slightly if left exposed.

Seasoning

Salt and pepper are called for twice—during cooking and again after blending—because flavors open up after the simmer and blending. Taste and trust your palate; a final adjustment often makes the difference.

Prep Ahead & Store

You can prepare the croutons up to a day ahead and keep them in an airtight container at room temperature; they’ll stay crisp for serving. The soup itself keeps very well.

Refrigerate cooled soup in an airtight container for up to 4 days. Reheat gently over low heat, stirring occasionally, and add a splash of stock or water if it thickened in the fridge. Freeze in portions for up to 3 months; thaw in the refrigerator overnight before reheating.

Your Top Questions

Can I make this without an immersion blender?

Yes. Transfer the cooked soup in batches to a countertop blender, pulse until smooth, and return it to the pot. Be careful with hot liquid—vent the lid slightly and hold a towel over it to prevent steam buildup.

Will the Jerusalem artichokes give an odd texture?

When sliced thin and cooked until very soft, they puree into a creamy texture that is pleasant and slightly nutty. The key is the 20-minute simmer and thorough blending without overworking the soup.

How do I prevent the croutons from getting soggy?

Serve them immediately after you top the soup, or keep them separate at the table so everyone can add them when ready. They crisp best fresh from the oven.

Final Bite

This Jerusalem Artichoke Soup is exactly the kind of thing I love bringing to the table: modest ingredients, intentional technique, and a result that feels thoughtful. It’s approachable for weekday dinners yet composed enough for a simple dinner with friends. Keep the steps in order, don’t rush the sauté, and treat the croutons as the tiny flourish they are. A final drizzle of extra virgin olive oil lifts the whole bowl—little details, big returns.

Give it a try on a cool evening. It warms the kitchen, and it rewards you with deep, cozy flavors that linger. If you make it, tell me what you added or changed—small adaptations are always welcome here.

Print Recipe Save it for later

Jerusalem Artichoke Soup

Creamy Jerusalem artichoke soup served with garlic croutons.

Prep Time10

Cook Time25

Total Time35

Servings: 2 servings

Ingredients

?2 teaspoonsolive oil
?1 tablespoonbutteror vegan butter
?1 oniondiced
?2 clovesgarlicminced
?500 gJerusalem artichokespeeled or scrubbed and thinly sliced
?750 mlvegetable stock/broth
?Salt and pepper
?2 thick slicesbreadcut into 1/2-inch 1 cm pieces
?1 tablespoonolive oil
?1/4 teaspoongarlic powder
?Salt and pepper
?Extra virgin olive oil

Instructions

Preheat the oven to 350°F (180°C). Arrange the ½-inch (1 cm) bread pieces in a single layer on a baking sheet. Drizzle with 1 tablespoon olive oil and toss or turn the pieces to coat evenly. Bake 5 minutes or until golden and crunchy. Remove from the oven and immediately sprinkle with ¼ teaspoon garlic powder and season with salt and pepper to taste; set aside.
In a medium pot over medium heat, add 2 teaspoons olive oil and 1 tablespoon butter (or vegan butter). Heat until the butter melts.
Add the diced onion and sauté, stirring occasionally, until soft and translucent (about 5 minutes).
Add the thinly sliced Jerusalem artichokes and sauté 4–5 minutes, until they begin to soften.
Add the minced garlic and cook, stirring, for about 30 seconds until fragrant.
Pour in 750 ml vegetable stock. Increase heat to bring the pot to a gentle simmer. Once simmering, cover, reduce the heat to maintain a gentle simmer, and cook 20 minutes, until the Jerusalem artichokes are very soft.
Remove the pot from the heat. Season with salt and pepper. Using a handheld (immersion) blender, blend the soup in the pot until just creamy and smooth—do not over-blend.
Taste and adjust seasoning with more salt and pepper if needed.
Serve the soup in bowls, drizzle with extra virgin olive oil, and top with the garlic croutons.

Equipment

Oven
Baking Sheet
Medium pot
handheld blender

Notes

Notes:
Nutrition
– per serving assuming this recipe makes 2 large servings of soup. Without the croutons or drizzle of olive oil.