Ingredient Substitution Guide: What to Swap and How Much

The best substitution is the one that does the same job as the missing ingredient. Know what the ingredient does in the recipe (binds, leavens, moistens, thickens, adds flavor), then pick a swap that covers that job and accept small changes in taste and texture. This guide gives you the amounts for the swaps cooks reach for most, explains how to judge a risky one, and shows how to keep track of your changes so you can repeat the good ones.

RecipeforkMake Every Recipe Your OwnRecipeFork lets you adapt recipes, credit their sources, and save favorite versions in personalized cookbooks.Explore RecipeFork

TL;DR

• Every ingredient has a job. University extension guidance warns that swaps can change taste, color, moisture and texture, so match the function first and the flavor second.
• Baking is less forgiving than cooking. Soups, stews and sauces tolerate swaps. Cakes, cookies and biscuits depend on precise chemistry.
• For one egg in baking, the common options are 1 tablespoon of flax or chia plus 3 tablespoons of water, 1/4 cup of applesauce or mashed banana, or 3 tablespoons of aquafaba.
• For butter, match the form: oil for melted butter, shortening or solid coconut oil for softened, chilled shortening for cold. Don’t swap in recipes that rely on creaming.
• When the missing item is the main ingredient or the structure of the dish, choose a different recipe.

Table of Contents

• Start with what the ingredient does
• Replacing eggs in baking
• Replacing butter in a recipe
• Pantry swaps with exact amounts
• Swaps for diets and budgets
• How to tell whether a swap will change the result
• When to pick a different recipe
• A method for substituting well
• Our perspective: a swap is a recipe’s next version
• Keep your swaps in one place
• FAQ
• Sources

Start with what the ingredient does

A recipe is a set of jobs. Eggs bind and lift. Butter adds fat, flavor, moisture and tenderness. Baking powder makes gas. Cornstarch thickens. A substitute works when it takes over the job, and it fails when it only resembles the original in the jar.

That is why extension services are cautious. NDSU Extension notes that every ingredient has a function and recommends swaps for unexpected situations, not as a default. Mississippi State University Extension adds that substitutes may not perform exactly like the original, so they suit cases where a slight variation in taste or substance is acceptable.

Before you swap, ask three questions:

1. What is this ingredient doing here? Binding, leavening, moisture, fat, sweetness, thickening, flavor?
2. Is the recipe forgiving? Sauces, soups, casseroles and marinades are. Delicate cakes, pastry and bread are not.
3. Can I live with a different result? A denser brownie is fine. A flat birthday cake may not be.

Replacing eggs in baking

Eggs are the swap people search for most, and there is no single answer. The right replacement depends on whether the egg is there to bind, to lift or to add moisture. K-State Research and Extension makes the same point: the best egg substitute depends on the end product and the function it needs to provide.

University of Minnesota Extension gives these amounts for one egg in baking:

Replacement for 1 egg	Amount	Best for
Flaxseed meal or chia seeds plus water	1 tablespoon mixed with 3 tablespoons water	Muffins, quick breads, cookies, pancakes
Applesauce or mashed banana	1/4 cup	Moist cakes, muffins, quick breads
Aquafaba (chickpea liquid)	3 tablespoons	Cakes, brownies, light batters
Unflavored carbonated water	1/4 cup	Recipes where the egg is only leavening
Oil, water and baking powder	1 teaspoon oil, 2 tablespoons water, 2 teaspoons baking powder	Recipes where the egg is only leavening

A few practical notes:

• Let flax gel. Ground flaxseed mixed with water needs about 5 minutes to rest before it works as a binder.
• Fruit purées add flavor and moisture. Banana is noticeable. Applesauce is quieter. Expect a denser, softer crumb.
• Don’t stack substitutes. Replacing one egg is usually fine. Replacing three or four eggs in a sponge cake usually isn’t, because the eggs are the structure.
• Test small first. Make a half batch of muffins before you commit to a double batch for a party.

Replacing butter in a recipe

Butter is about 80% fat with the remainder mostly water, while oil is nearly all fat. That difference is why an oil-based cake tends to have a softer crumb and why flavor shifts too. Butter also supplies fat, flavor, moisture and tenderness. Fat limits gluten development, so cutting it can make muffins and biscuits tougher.

Match the form of the butter

The easiest rule is to read how the recipe uses the butter, as Betty Crocker Kitchens explains:

• Melted butter: use oil or melted coconut oil.
• Softened butter: use vegetable shortening or solid coconut oil.
• Cold butter: use chilled shortening.

The same source says that if a recipe starts by creaming butter and sugar, you generally shouldn’t substitute, because the butter contributes texture and structure. Melted-butter recipes, such as brownies and many quick breads, are far more forgiving.

Ratios worth knowing

Healthline reports that ghee and coconut oil work 1:1 for butter, while olive oil generally replaces butter at a 3:4 ratio by volume. In practice, that means 3/4 cup of olive oil for 1 cup of butter. Olive oil brings its own flavor, so it suits savory bakes, focaccia and some chocolate cakes better than shortbread.

Cutting some of the fat

If you want to lower the fat, replace only part of it. Illinois Extension says swapping half the fat for applesauce, puréed prunes, mashed banana or nonfat yogurt can reduce fat, with trade-offs: applesauce and yogurt add moisture, prunes may need extra liquid, and banana adds a noticeable flavor.

Brand-side baking tips point the same way: oil often makes cakes moister, avocado can give brownies a creamy texture, and banana helps muffins and quick breads hold moisture. The cost is that oil can make pastry crumbly and cookies less crisp.

If you just want better butter flavor rather than a replacement, our honey butter recipe is a simple spread that shows how a small tweak changes a classic.

Pantry swaps with exact amounts

Some substitutions are chemistry you can measure. Illinois Extension lists these tested amounts:

If you’re out of	Use instead
1 cup buttermilk	1 tablespoon lemon juice plus enough milk to make 1 cup
1 tablespoon cornstarch	2 tablespoons flour
1 teaspoon baking powder	1/4 teaspoon baking soda plus 5/8 teaspoon cream of tartar
1 cup half-and-half	1 cup undiluted evaporated milk

Two cautions apply. First, measure these exactly. A baking powder swap with a heavy hand on the soda will taste soapy. Second, thickeners and sweeteners don’t always trade 1:1, so check the thickening or sweetening power of the replacement. The flour-for-cornstarch swap above is a good example: you need double the flour, and the sauce will be a little cloudier.

Swaps for diets and budgets

Substitutions are also how recipes adapt to a household. Health Canada’s cooking guidance suggests that for a gluten-free version you can try brown rice or buckwheat flour instead of wheat flour, and notes that texture may change so other ingredients might need adjusting. The same page suggests stretching a budget with plant-based proteins such as lentils, beans or chickpeas.

If you cook for someone with a medical allergy or celiac disease, don’t rely on a general chart. Check labels on every packaged ingredient and ask the person’s doctor or dietitian about what is safe for them.

Soups and stews are the easiest place to practice. Beans for part of the meat, a different green, or stock in place of water rarely ruin a pot. You can see how one base evolves in our Good soup cookbook.

How to tell whether a swap will change the result

The New York Times cooking guide says to consider texture, flavor and cook time, and to expect that some alternatives won’t work in every case, especially in baking. Food Network’s guide agrees that appearance, taste and texture may change.

Use this quick check:

• Texture: Is the replacement wetter, drier, denser or more fatty? Adjust flour or liquid slightly, or replace only part of the ingredient.
• Flavor: Will the new flavor fit the dish? Banana in a chocolate muffin is fine. Banana in a lemon cake is a risk.
• Cook time: Moist swaps such as purées often need a few extra minutes. Start checking at the usual time, then go on doneness, not the clock.
• Structure: Food scientist Polly Burey explains that fats help build the emulsion in cake batter, so swapping butter for oil changes the crumb even if the cake still works.

When to pick a different recipe

Some gaps can’t be patched. Skip the swap and choose another recipe when:

• the missing ingredient is the main food, such as the chicken in a chicken pie or the eggplant in a dip;
• the ingredient is the binder holding the dish together and the recipe has no other;
• the recipe depends on a technique built around the ingredient, like creaming butter for a pound cake or whipping egg whites for a meringue.

There is nearly always a recipe that fits what you have. A pantry of beans, corn and frozen vegetables, for example, makes a warm lima bean and corn succotash a better plan than a forced swap in something else.

A method for substituting well

1. Read the whole recipe and identify the ingredient’s job.
2. Choose a swap that does that job, using a tested amount where there is one.
3. Change one thing at a time. Two swaps at once means you can’t tell which one caused a problem.
4. Replace part, not all, when you’re unsure.
5. Write down what you did and how it came out.

Step 5 is the one most people skip, and it is where the value builds up. Next time you’ll know the flax egg made the muffins denser, or that shortening worked for the cookies.

Our perspective: a swap is a recipe’s next version

We think substitutions are how recipes live. Nobody cooks a recipe the same way twice, and the best versions usually come from someone running out of something, trying a swap and writing down what happened.

The problem is that those changes usually vanish. They get scribbled on a printout, lost in a comment thread, or buried on an ad-heavy page. On RecipeFork you fork the recipe, change the ingredient, and keep the original cook credited. The adapted version sits next to its source, so the next cook sees what you swapped and where the idea came from.

Our advice from that approach: swap one ingredient, measure it, note the result, and share what you learned. A substitution chart tells you what might work. A forked recipe shows what did.

— RecipeFork

Keep your swaps in one place

If you’re tired of losing your notes, you can fork a recipe on RecipeFork, edit the ingredients, and keep the source credited. Gather your tested versions in your own cookbook, and browse what other cooks have adapted in public cookbooks. Your Saved Recipes collection is a handy place to hold the ones you want to try next.

FAQ

What is the easiest egg substitute for baking?

For muffins, quick breads and cookies, 1 tablespoon of ground flaxseed mixed with 3 tablespoons of water is a common choice per egg, and it needs a short rest to thicken. Another option is 1/4 cup of applesauce or mashed banana. Pick based on what the egg does in your recipe, and don’t use these for recipes that rely on many eggs for structure.

Can I replace butter with oil in any recipe?

No. Oil works best where the recipe calls for melted butter, and you should expect a softer crumb and a flavor change. Recipes that begin by creaming butter and sugar depend on the butter for structure, so a swap there usually disappoints. If you use olive oil, start with about 3/4 cup for each cup of butter.

How do I make buttermilk without buying it?

Stir 1 tablespoon of lemon juice into a measuring cup, then add milk to reach 1 cup. Use it in place of buttermilk in pancakes, biscuits and cakes. It won’t be identical, but it provides the acidity most recipes need.

Do substitutions change cooking time?

Often, yes. Moister replacements such as fruit purées can lengthen baking, and oil-based batters may brown differently. Start checking at the usual time, then rely on doneness cues like a clean toothpick or a set center.

Sources

• Ingredient Substitutions, NDSU Extension
• Ingredient Substitutions and Equivalents, Mississippi State University Extension
• Egg substitutions for baking, University of Minnesota Extension
• What can replace eggs in the kitchen, K-State Research and Extension
• Functions of fats in the kitchen, Illinois Extension
• Recipe Substitutions, Illinois Extension
• Run out of butter or eggs? The science behind substitute ingredients, The Conversation
• What Are the Best Substitutes for Butter?, Healthline
• Common Cooking and Baking Substitutions, Betty Crocker
• Butter Substitutes in Baking, Dr. Oetker
• Adjusting recipes to meet your needs, Health Canada
• Ingredient Substitutions for Cooking and Baking, NYT Cooking
• Ingredient Substitution Guide, Food Network

Recommended

• Cauliflower
• Honey butter
• Harissa-Roasted Cauliflower with White Bean Cream

Written with BabyLoveGrowth’s technology