Sweet Potato Soup

A bowl of soup out of yesterday's mashed sweet potatoes · 20 minutes, one pot

Serves 3–4 · 20 min

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~2 cups leftover mashed sweet potatoes
1 Tbsp butter or olive oil
1 small onion or shallot, diced
2 garlic cloves, minced
1 tsp grated ginger (optional — warms it up)
2½–3 cups chicken or vegetable stock — more for a thinner soup
¼ cup cream, coconut milk, or a splash of milk (optional — for silk)
½ tsp warm spice — cinnamon, cumin, or a pinch of curry/chipotle · salt & pepper to taste
1 Tbsp lemon or lime juice (or cider vinegar) — the bright finish
to top: toasted seeds, a swirl of cream, herbs, or shiitake/lion's mane seared in butter

Soften the aromatics. Melt the butter in a pot over medium; cook the onion/shallot with a pinch of salt until soft and translucent, 4–5 min, then the garlic and ginger for a minute more until fragrant.
Bloom the spice. Stir in the warm spice for 30 seconds — toasting it in the fat wakes it up before the liquid goes in.
Whisk in the mash & stock. Add the mashed sweet potato and 2½ cups stock, whisking to break up the mash into the liquid. Bring to a gentle simmer; add more stock until it's the body you want — it'll thicken slightly as it sits.
Simmer & smooth. Simmer 5–10 min to marry it. If the mash was lumpy or had skins, blend it silky (stick blender right in the pot, or a jar blender in batches); if it was already smooth, skip it. Stir in the cream if using.
Brighten & finish. Off the heat, stir in the lemon or lime and taste — it should taste warm and round, not flatly sweet. Adjust salt, acid, and spice. Top and serve.

Steps — tap one to keep your place

1. Soften the aromatics. Melt the butter in a pot over medium; cook the onion/shallot with a pinch of salt until soft and translucent, 4–5 min, then the garlic and ginger for a minute more until fragrant.

2. Bloom the spice. Stir in the warm spice for 30 seconds — toasting it in the fat wakes it up before the liquid goes in.

3. Whisk in the mash & stock. Add the mashed sweet potato and 2½ cups stock, whisking to break up the mash into the liquid. Bring to a gentle simmer; add more stock until it's the body you want — it'll thicken slightly as it sits.

4. Simmer & smooth. Simmer 5–10 min to marry it. If the mash was lumpy or had skins, blend it silky (stick blender right in the pot, or a jar blender in batches); if it was already smooth, skip it. Stir in the cream if using.

5. Brighten & finish. Off the heat, stir in the lemon or lime and taste — it should taste warm and round, not flatly sweet. Adjust salt, acid, and spice. Top and serve.

✨ Untested — Claude drafted this one from scratch; it hasn't been cooked and amended in our kitchen yet, so treat the amounts as a starting point. Low salt — salt at the end and taste as you go; broth, cheese, and canned goods already bring salt.