Many recipes call for heavy cream as a thickening agent that also adds flavor and richness to sauces, soups and desserts. Half-and-half is a lower-fat alternative to heavy cream. It averages 12 percent butterfat versus 38 percent butterfat in heavy cream. Because it contains less fat, it can't be thickened by whipping or by straight reduction because it will curdle before it thickens. However, half-and-half can be thickened by adding it to a roux, which is a mixture of flour and fat.
Melt butter in a saucepan over medium heat. Gradually pour an equal amount of flour into the melted butter while stirring to thoroughly combine both ingredients.
Cook the roux for about 10 minutes. Stir constantly so that the flour cooks completely but the roux doesn't burn. The roux is ready when the ingredients resemble a smooth paste and the raw flour taste is gone. This is called a blond roux and has a slightly nutty flavor.
Pour cool or room-temperature half-and-half into the roux paste a little at a time to keep the mixture from forming lumps. Stir constantly until you've added all of the half-and-half.
Cook the mixture over medium heat and continue stirring for about 10 minutes or until the half-and-half has thickened. Allow the thickened half-and-half to cool before adding it to soups or sauces. Store any that is left over in the freezer.
What Is Ratio for Cornstarch & Water to ...
The Difference Between Half-and-Half ...
How to Substitute Potato Starch for ...
How to Roast Chickpea Flour
How to Make Sugaring Wax
How to Make Cornmeal Polenta
Recipe for How to Make Glycerin Soap ...
How to Improve Jar Spaghetti Sauce With ...
Calories in Tahini Sauce
How Long Can You Refrigerate Nacho ...
How to Thaw Henna
How to Make Crab Bisque
The Ratio of Flour to Oil to Make Roux
How to Store Cooked Ground Beef
How to: Crock-Pot Lima Bean Soup
How to Fix Grainy Whipped Ganache
How to Add Irish Cream to Buttercream ...
How to Make a Roux to Thicken Up Soup
How to Make Simple Homemade Gravy
How to Make A1 Steak Sauce Thick & ...
- Use a ratio of one part roux paste to four parts half-and-half as a guideline.
- Because it does take extra time, make the thickened half-and-half prior to starting a recipe that calls for it.
- As a starch-based thickener, roux paste is more stable than cornstarch, arrowroot or other pure starches. They may have more thickening power to begin with, but they tend to break down more quickly than a roux.
Mary Potts has been a writer since 2008. She writes food reviews, chef profiles and feature articles ranging from green living to arts and culture for "North Bank," an urban lifestyles magazine based in Vancouver, Wash. Potts earned a Bachelor's degree in photography from Northern Arizona University in 1997.
Jupiterimages/Brand X Pictures/Getty Images