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Starches and Slurries: How Cornstarch, Flour, and Arrowroot Compare

A close-up of three translucent jars filled with white powder, each labeled with a different starch type.

Starches and Slurries: How Cornstarch, Flour, and Arrowroot Compare

Dive into the thickening power of cornstarch, flour, and arrowroot. Discover their unique properties and find out which one is best for your culinary adventures.

The Thickening Trio: An Intro

Ah, the quest for the perfect sauce, gravy, or pie filling! It's a journey of trial, error, and a little bit of starch. Welcome to the world of thickening agents, where cornstarch, flour, and arrowroot are the heavy hitters.

What Makes a Good Thickener?

Before we dive into the nitty-gritty, let's talk about what makes a thickening agent great. It needs to transform liquids into luscious, velvety delights without turning them into gluey disasters.


Cornstarch: The Kitchen MVP

Cornstarch is the go-to for many home cooks. It's mighty powerful—just 1 tablespoon can thicken a cup of liquid. And it's clear, so it won't cloud up your sauce.

Pros and Cons

Pro Tip: Whisk 1 tablespoon cornstarch with 2 tablespoons cold water to make a slurry. Add this to your simmering sauce for a smooth finish.


Flour: The Reliable Sidekick

Flour isn't just for bread and cookies. It's a thickening agent that adds body and a little bit of flavor. It's less potent than cornstarch, but it's got that rustic charm.

Pros and Cons

Pro Tip: Cook flour for a few minutes in fat before adding liquid to create a roux for gravies and soups.


Arrowroot: The Gluten-Free Contender

Arrowroot is the darling of gluten-free cooking. It's clear like cornstarch, but it holds up better to freezing and thawing, making it ideal for pie fillings.

Pros and Cons

Pro Tip: Use arrowroot in fruit pies for a glossy finish that won't weep when chilled.


Choosing Your Thickener

Each starch has its moment to shine. Here's how to pick the right one:


Mini FAQ

Can I use these starches interchangeably?

Mostly, yes! Just adjust quantities—cornstarch and arrowroot are about twice as potent as flour.

Do I need to cook out raw starch?

Absolutely. Bring your sauce to a simmer to cook out any raw starch taste.


Closing Thoughts

Whether you're a pie enthusiast or a sauce aficionado, understanding your thickening agents is key to culinary success. Keep experimenting, and remember—cooking is an adventure, not a science project. Mostly.

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