What's the Best Pie Filling Thickener? (2024)

Can flour, cornstarch, and tapioca be used interchangeably or is one better than the others?

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What's the Best Pie Filling Thickener? (1)

It's pie season! Are you ready? You have your favorite pie crust recipe, and all of the ripe, farm-fresh fruit, but there's one more thing you need in order to serve picture-perfect wedges of pie: the right thickener to transform the cooked fruit's juices from runny mess to luscious, slice-able filling. Some pie recipes thicken the filling with flour; others use cornstarch, while others still rely on tapioca. What's the difference between each, and how do you choose the right one for your recipe?

All of these thickeners work in approximately the same way: Heat causes the starches in the thickeners to bond with the liquid in the pie filling and begin to swell, forming a more stable structure. This is why pie filling doesn't get thick until it's cooked. The difference between the thickeners is mostly about how they look and taste, the temperature at which they begin to thicken, and how long they hold their structure after cooking.

Flour as Pie Filling Thickener

Teaspoon for teaspoon, you will need to use about twice as much flour as you would cornstarch or tapioca to achieve the same thickening effects. Adding too much flour to your pie filling will turn it cloudy and pasty, with a distinctly floury taste. For this reason, flour works best with fruits that are less juicy, and/or are naturally high in pectin-a naturally occurring thickening agent-such as apples and blueberries.

Cornstarch as Pie Filling Thickener

Just like the name suggests, cornstarch is derived from corn. Cornstarch is faster-acting than flour and forms a smooth, relatively clear filling. Just be aware that too much cornstarch can create a slimy texture. When cornstarch is combined with acidic ingredients such as rhubarb or lemon juice, it can cause the texture to break down over time. This isn't a problem if you expect your pie to get gobbled up in one day, but if you're looking forward to leftovers, or if you plan to freeze your pie, it's best to use a different thickener.

Tapioca as Pie Filling Thickener

Tapioca-it's not just for pudding! This old-school ingredient may be what your great grandmother used to thicken her pies, and it's still great for making a perfect fruit pie with a clear, stable filling. Tapioca is derived from cassava (also known as yuca or manioc), a starchy root native to South America. Tapioca comes in several different forms, but the one you want for pie-making is instant (otherwise known as quick-cooking) tapioca. When using tapioca as a thickener, allow the pie filling to sit for at least 15 minutes to absorb the juices before spooning it into the crust. Tapioca can be substituted in a one-to-one ratio for cornstarch.

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What's the Best Pie Filling Thickener? (2024)

FAQs

What's the Best Pie Filling Thickener? ›

All-purpose flour is an easy solution, as you're sure to have it in your pantry. Since it's lower in starch, you'll use more of it than you would higher-starch thickeners. Quick-cooking tapioca makes filling bright and clear, but also gives it a stippled and somewhat sticky texture.

What is the best thickener for pie filling? ›

Very often flour or cornstarch is used, but in certain instances tapioca, arrowroot and potato starch can also help achieve the desired consistency. Tapioca starch is preferable for products that will be frozen because it will not break down when thawed. We like tapioca in blueberry, cherry or peach pies.

Is it better to use flour or cornstarch in pie filling? ›

Cornstarch is faster-acting than flour and forms a smooth, relatively clear filling. Just be aware that too much cornstarch can create a slimy texture.

Which starch is best for thickening most fruit pie fillings? ›

The three most common starches used to thicken the fruit juices of a pie are flour, tapioca, and cornstarch. I prefer cornstarch because I find that it actually enhances the flavor of the fruit.

What can I use instead of cornstarch to thicken pie filling? ›

All-purpose flour is an easy substitute for cornstarch; in fact you may see recipes for thickening pie fillings or soups with either. You'll need 2 tablespoons of flour for every 1 tablespoon of cornstarch in a recipe.

What is the best way to thicken meat pie filling? ›

Flour and butter (sauce thickening) – In today's recipe, we are thickening the stew using a simple French finishing technique called a Beurre Manié. This is raw flour and softened butter mixed together, and then stirred into a liquid (a sauce usually). It makes the sauce shiny and thick.

How do you keep pie filling from being runny? ›

Adding Thickener

A thickener prevents the filling from being too watery by adding a substance that will absorb some of the liquid that seeps out of the fruit. A small amount of thickener should not alter the flavor of your pie. Use cornstarch as a thickener.

How much cornstarch to thicken? ›

If you're cooking hot liquids like sauces, stock or broth, 1 tablespoon of corn starch per cup of liquid will give you a thin to medium consistency that's appropriate for soups or very thin sauces. 2 tablespoons per cup will give you a thicker, more gravy-like consistency.

Which is better for thickening, cornstarch or flour? ›

Because cornstarch is pure starch, it has twice the thickening power of flour, which is only part starch. Thus, twice as much flour is needed to achieve the same thickening as cornstarch. To thicken sauces, cornstarch is combined with cold water first, which is called a slurry.

Why won't my pie filling thicken? ›

Most thickeners activate after maintaining a certain temperature long enough. If you don't leave the pie in the oven long enough your thickener doesn't get to the necessary temperature and time to thicken your filling.

What is King Arthur pie filling enhancer? ›

Pie Filling Enhancer thickens fruit pie fillings the same way Instant ClearJel does. Its advantage is added ascorbic acid (which adds a bright, tart note), and superfine sugar, which prevents it from clumping. Pie Filling Enhancer is about half sugar, so you'll want to reduce the sugar in your recipe accordingly.

What type of starch is not recommended for a pie that will be frozen? ›

Don't freeze pies that use cornstarch in the filling.

Cornstarch molecules “thicken” pie fillings by trapping water as the starches are heated - but the freezing process breaks down the starch molecules. If you freeze and thaw a fruit pie thickened with cornstarch, it can “weep” and start releasing liquid.

What is the best starch thickening? ›

Potato Starch

As an amazing thickening and binding agent, it is ever popular in many gluten-free recipes. With a low gelatinizing temperature, relatively colorless, odorless, and tasteless, and a strong binding texture, potato starch is used for cooking and baking applications alike.

What if the filling is too runny in steak pie? ›

If the filling looks too runny, transfer the meat and veg with a slotted spoon to your pie dish and boil the liquid on a high heat to reduce quickly. Then pour over with the meat and allow to cool before topping with the pastry.

Can I use potato starch instead of cornstarch in pie? ›

Dishes like soups, gravies, pie fillings and puddings are all recipes in which you can use cornstarch and potato starch interchangeably.

What is a substitute for clear jel? ›

Substitutes in Cake Batter and Cookies—You may substitute Instant Pudding Mix in either equal parts or 1.5x the Instant ClearJel (in measuring spoons, not grams, as the weight varies.

What is the best starch to use in pie fillings that are to be frozen? ›

Freezing causes liquids thickened with flour or cornstarch to shear or separate during freezing. Therefore, baked pies or fillings thickened with tapioca or modified food starch such as Instant ClearJel® or ThermFlo® will maintain their consistency better.

What is the best thickener for baking? ›

Potato Starch

As an amazing thickening and binding agent, it is ever popular in many gluten-free recipes. With a low gelatinizing temperature, relatively colorless, odorless, and tasteless, and a strong binding texture, potato starch is used for cooking and baking applications alike.

How to use arrowroot to thicken pie filling? ›

When making custards, puddings and pie, add a few tablespoons of arrowroot powder to the recipe before baking. Doing so will help the ingredients in the dessert bind together and thicken to the desired consistency.

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