A "thickened mixture" refers to a substance that has become thicker in consistency, often due to the addition of a thickening agent or through cooking. It is now more viscous and less liquid-like.
Sentences with «thickened mixture»
The black beans help to thicken the mixture as well as adding in extra nutrients to this recipe. (deliciouslyella.com)
You will need something to thicken the mixture up a little. (fooddoodles.com)
Remove the pan from the heat and thicken mixture by whisking it for about 2 - 3 minutes. (bake-no-fake.com)