01
Nutritional Yeast
10.0best for soup1 tbsp : 1/2 tbsp
Mild cheesy flakes; sprinkle 1 tbsp for umami, less concentrated than yeast extract spread
10.0
yeast extract spread substitute
in soup.
Yeast Extract Spread delivers concentrated umami and savory depth to Soup. Dissolved in hot broth, its glutamates and B vitamins enrich the liquid's savory baseline without adding sodium at the same rate as table salt; a substitute should contribute free glutamates in solution so the broth tastes round and deep rather than merely salty.
top substitutes
adjustment for this dish
Nutritional Yeast is a flake that thickens as it hydrates — whisk 1/2 tbsp per quart into 1/4 cup hot broth first, then stir back into the pot during the last 10 minutes of simmer. Nooch lacks the spread's salt, so add 1/2 tsp salt to the aromatics stage; skim before adding and don't blend past smooth or the body turns pasty.
02
Chicken Broth
10.0best for soup1 cup : 1 cup
Light savory broth; dissolve 1 tsp yeast extract in 1 cup hot water for concentrated umami
10.0
adjustment for this dish
Chicken Broth is the base itself, not a seasoning — replace 1 cup stock with 1 cup broth rather than using it as a 1:1 swap for 1 tsp spread. Reduce the total liquid by 15% to build body that the spread would have contributed through sodium concentration, and stir in a bay leaf during the 20-minute simmer for depth the broth alone won't reach.
03
Fish Sauce
10.01 tbsp : 1/2 tbsp
Pungent fishy umami; use 1 tsp fish sauce per tsp yeast extract, saltier so adjust
10.0
adjustment for this dish
Fish Sauce is thin and hits harder per volume — use 1/2 tbsp per quart stirred in during the last 5 minutes of simmer, because its amines blow off fast above 200 degrees F. Unlike the spread which builds a malty backbone through the whole pot, fish sauce seasons from the top down, so taste before salting and skim before adding to keep the broth clear.
technique for soup
technique
Yeast Extract Spread stirred into soup at 1 tsp per quart of broth during the last 10 minutes of simmer builds depth without the boiled-down bitterness you get when you add it at the start — the volatile malty notes blow off above 30 minutes at a rolling simmer. Sauté your aromatics (1 diced onion, 2 cloves garlic) in 2 tbsp butter for 6 minutes until translucent, add stock and a bay leaf, simmer 20 minutes, then skim the surface and whisk the spread into 1/4 cup of the hot broth separately before stirring the slurry back in — direct drops sink and scorch on the pot bottom.
Reduce by 15% after adding to concentrate the body, then blend if pureed style. Unlike pasta where the spread finishes a quick toss, soup uses it as a seasoning platform that warms flavors from underneath — taste for salt only after the spread has been in for 5 minutes because its 11% sodium needs time to distribute.
pitfalls to avoid
watch out
Don't stir the spread in at the start of the simmer; add it in the final 10 minutes or the malty aromatics blow off and leave only a bitter backbone.
watch out
Avoid dropping the paste directly into the pot; whisk 1 tsp into 1/4 cup hot broth first, because undissolved lumps sink and scorch on the bottom.
watch out
Skip aggressive reduction after adding — a 15% reduce is enough, and going further over-concentrates the 11% sodium until the soup is inedible.
watch out
Don't skim after the spread goes in; skim before, because the spread carries body you want to keep in the broth rather than pulling off with the foam.
watch out
Avoid salting until the spread has simmered for 5 minutes; its sodium needs time to distribute through the stock and the aromatics.