verb (used with or without object)
Related formsre·thick·en, verbun·thick·en, verb (used with object)
Examples from the Web for thicken
And with 50,000 people expected at a massive rally Wednesday, the plot—and the traffic—will only thicken.
Curry sauces often include large amounts of cream, coconut milk, or ground cashews to thicken the sauce.
We use them to thicken sauces and bind crisp batters to succulent, deep-fried treats.
Stir this until it begins to thicken, cool and add carefully the whipped cream and stand it away until very cold.Sandwiches|Sarah Tyson Heston Rorer
Let it boil a minute or two, and it will thicken to a batter.The Young Housekeeper's Friend|Mrs. (Mary Hooker) Cornelius
Heat a pint of water, and when boiling, thicken with a tablespoonful of cornstarch.Science in the Kitchen.|Mrs. E. E. Kellogg
Mix with the liquor a quart of water, (or what will be much better, a quart of milk,) and thicken it with butter rolled in flour.Directions for Cookery, in its Various Branches|Eliza Leslie
Melt the fat, stir in the flour and add to the hot liquid to thicken.Quantity Cookery|Lenore Richards