boil down

Mix and boil down to one quart; when cool give it as a drench.

When the lime is slaked, add six gallons of water, and boil down to two gallons.

Addison and I went over one afternoon to see them "boil down."

In a stew, on the contrary, you boil down this soup till it permeates the fibre which long exposure to heat has softened.

Put the bones back into the broth and let this boil down to three quarters of a pint.

My idea is that they boil down a dictionary, and take two table-spoonsful each night before going to bed.

As I was sitting on the ground by them next morning, lamenting I had nothing to boil down their blubber in, an idea struck me.

Take the apples out, core them and fill with a fruit jelly, if liked, boil down the syrup and pour over the fruit.

They taught our New England ancestors how to tap the trees and boil down the sirup and how to "sugar off."

Pick out the meat, boil down the shell, use the liquor for making the sauce with minced lobster, and buttered rolled flour.