When you are ready to cook, bring stock to a slow boil in a large pot.

Bring to a slow boil and cook for 45 minutes to 1 hour, until the beans are tender.

It drank up the green matter that flowed to the top in a slow boil.

He kept the rage on a slow boil in order to concentrate.

Did he do a long, slow boil and then explode?

I saw a slow massive boil about a hundred yards out.

When well mixed, return the pan to the heat and bring to a slow boil.

You look as though you're about to come to a slow boil.

Bring to a slow boil, stirring to dissolve the sugar.

I'd filled both with clear water from the river and each had a slow boil going in it.