01
Parsnips
10.0best for soup1 cup : 1 cup
Sweeter, good mashed or roasted
10.0
turnips substitute
in soup.
Turnips brings earthy, slightly peppery flavor to Soup. In the broth and body, substitutes should match its density and mild bite.
top substitutes
adjustment for this dish
Parsnips sub 1:1 cup and simmer a full 30 minutes — longer than turnip's 22 — because their starch needs time to release body into the broth. Cut the butter sauté to 4 minutes; their sugars brown faster than turnip's and a longer sauté tips the depth from warm to bitter against the stock.
02
Sweet Potato
10.0best for soup1 cup : 1 cup
Sweeter and softer, adjust cook time down
10.0
adjustment for this dish
Sweet potato at 1:1 cup thickens the broth on its own — skip the blend-a-cup-back step that turnip needs. Simmer only 18 minutes so the cubes hold shape, and season with 20% less salt since sweet potato amplifies savory notes through the aromatics and bay leaf during the reduce.
03
Potatoes
10.0best for soup1 cup : 1 cup
Neutral starch, works in any dish
10.0
adjustment for this dish
Potatoes sub 1:1 cup and release enough starch during a 25-minute simmer that you don't need to blend any back to thicken. Sauté 5 minutes in butter with the aromatics — one minute less than turnip — because potato edges go translucent faster and a longer sauté turns them grainy in the finished body of the soup.
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04
Radishes
6.71 cup : 1 cup
Peppery, great roasted as turnip sub
6.7
adjustment for this dish
Radishes keep their pepper through 20 minutes of simmer; use 1:1 cup but pull the pot at minute 18 before the glucosinolates turn bitter in the stock. Skim foam aggressively at minute 8 — radishes throw more than turnips — and season the sauté lighter since their sharpness builds during the reduce.
05
Kohlrabi
6.71 cup : 1 cup
Mild root, good raw or cooked
6.7
adjustment for this dish
Kohlrabi subs 1:1 cup and behaves like a milder turnip in broth — simmer 24 minutes until tender. Its flesh stays firmer than turnip at the same time, so increase the initial butter sauté to 8 minutes with aromatics to develop depth, and skip the blend-back thicken step because kohlrabi doesn't dissolve enough to body the stock on its own.
06
Brussels Sprouts
6.71 cup : 1 cup
Cube and roast, mild and slightly sweet
6.7
07
Pumpkin
6.01 cup : 1 cup
Mild root, mash with butter for similar body
6.0
08
Carrots
6.71 cup : 1 cup
Sweeter, similar dice size for stews
6.7
09
Cauliflower
6.71 cup : 1 cup
Mild flavor, mash as turnip substitute
6.7
10
Beets
5.01 cup : 1 cup
Similar density, less sweet
5.0
11
Fennel
5.01 cup : 1 cup
Mild when cooked, slice thin for raw salads
5.0
technique for soup
technique
Turnips give soup its backbone density, but they grow bitter if you push them past 45 minutes of simmer — the glucosinolates break down into sulfur notes that muddy the broth. Cube 3/4-inch, sauté in 2 tbsp butter with the aromatics for 6 minutes until the edges go translucent, then deglaze with stock and simmer just 22-25 minutes until a knife slides through with slight resistance.
For body, lift out 1 cup of the cooked dice, blend smooth with 1/2 cup of the broth, and stir it back in — that gives you thicken without a roux and keeps whole cubes in the bowl. Skim any gray foam at the 10-minute mark; it carries the peppery compounds you don't want.
Season in two stages: 1/2 tsp salt with the sauté, the rest at the end after the depth has developed. Unlike in pasta where turnips stay discrete and toss with starch water, in soup they partly dissolve into the stock and define its warm, earthy weight.
Finish with a bay leaf pulled at minute 20.
pitfalls to avoid
watch out
Don't simmer turnips past 45 minutes or bitter sulfur notes break loose and muddy the broth; pull at 22-25 minutes when a knife meets slight resistance.
watch out
Avoid skipping the initial 6-minute butter sauté with aromatics — raw turnip straight into stock leaves the broth thin and the depth never develops.
watch out
Don't skim only at the end; pull the gray foam at minute 10 or peppery compounds dissolve back into the stock and you can't season them out later.
watch out
Skip over-salting early; 1/2 tsp with the sauté and the rest at the end lets the warm body build before the seasoning locks in.
watch out
Don't blend the entire pot to thicken — lift out 1 cup of cubes, puree with 1/2 cup broth, and stir it back to keep whole pieces in the simmer.