Place in boiling salted water to cover and simmer, uncovered, for about 10 minutes or until tender.
Add the butter, chicken stock, salt, bay leaf, thyme, and tarragon and bring to a simmer.
simmer it for 45 minutes or so, then either 'mash the vegetables in the soup with a fork' or pass them through a food mill.
Bring the water to a boil, then lower the heat and simmer for 10 minutes, or until the potatoes are easily pierced with a fork.
Add the chicken stock, bring to a simmer, and cook, covered, until the vegetables are soft, about 30 minutes.
Season highly with salt, pepper, and cayenne, and let simmer for six or eight minutes.
Let it come to a boil, skim, and let it simmer; cover and cook for five hours.
simmer it gently for eight hours in a quart of water, till reduced to a pint and half, and skim it clean while it is doing.
If there are bones put them on to simmer and make a gravy, if not, use stock.
Cover the stew-pan, and simmer them slowly till they are tender.
1650s, alteration of simperen "to simmer" (late 15c.), possibly imitative; not thought to be connected to simper (v.). OED says the change is "probably due to a feeling of phonetic appropriateness." Figurative sense, of feelings, "to be agitated" is from 1764. Opposite sense, in simmer down, first recorded 1871, probably from the notion of moving from a full boil to a mere simmer.
I must and will keep shady and quiet till Bret Harte simmers down a little. [Mark Twain, letter, 1871]Related: Simmered; simmering. The noun meaning "a condition of simmering" is from 1809.