Making a Basic Vegetable Soup
A reliable vegetable soup starts with a hard sweat of onions, carrots, and celery in oil, followed by a slow simmer in stock until the vegetables reach the desired tenderness. The quality of your final bowl depends entirely on building that initial base and finishing with a bright hit of acid or fresh herbs before serving.
Consistency is your main tool.
Dice your vegetables into uniform pieces so they cook at the same rate. This ensures you aren't left with mushy potatoes and raw carrots in the same spoonful.
- Heavy-bottomed Dutch oven or stockpot
- Chef's knife
- Wooden spoon
- Vegetable peeler
What goes in.
- 3 tbspolive oil or unsalted butter
- 1 largeyellow onion, diced
- 2carrots, peeled and sliced into rounds
- 2 stalkscelery, sliced thin
- 3 clovesgarlic, minced
- 2 largeYukon Gold potatoes, scrubbed and cubed
- 6 cupsvegetable or chicken stock
- 2 cupsseasonal greens, chopped
- To tastekosher salt and black pepper
Building the foundation
Cook your onions, carrots, and celery over medium-low heat until the onions lose their raw bite and turn translucent. This step extracts the sugars and depth required to carry the broth.
The method.
Heat the fat
Place your pot over medium heat and add the oil or butter. Once the butter foams or the oil shimmers, add the onion, carrots, and celery.
Develop the base
Stir occasionally for about 8 to 10 minutes. When the onions are soft and the carrots have deepened in color, stir in the garlic and cook for one minute until fragrant.
Simmer
Add the potatoes and stock. Bring the liquid to a boil, then immediately turn the heat down to a low simmer. Cover partially and cook until the potatoes are tender when pierced with a knife, about 25 minutes.
Finish
Stir in the greens. They only need 2 minutes to wilt in the residual heat. Taste the broth and add salt and pepper until the flavors sharpen.
Other turns to take.
Grain-heavy
Add a half-cup of pearled barley or farro alongside the stock for a thicker, heartier texture.
Tomato-forward
Stir in a tablespoon of tomato paste with the garlic, or add a cup of canned crushed tomatoes during the simmer.
When it doesn't go to plan.
Always taste the broth before serving; vegetables absorb salt, so you often need more than you think.
If using dried herbs like thyme or oregano, add them during the sweating phase to bloom their oils.
Do not boil the soup aggressively, as this will break down the vegetables into an indistinct mush.
The ones that keep coming up.
Can I use frozen vegetables?
Yes, but add them during the final 5 minutes of simmering so they do not overcook.
How long will this last?
The soup stays good in the refrigerator for up to 4 days, though the vegetables will continue to soften in the liquid.
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