Water Pie Custard Vanilla

Featured in: Cozy Sweet Treats

This Depression-era treat combines water, sugar, flour, butter, and vanilla in an unbaked crust to create a surprisingly creamy dessert. The filling sets into a custard-like texture with a subtle vanilla flavor, accented by a golden, crisp top and sugary crust. Preparation takes just ten minutes, with baking and cooling time resulting in a smooth finish perfect for slicing. Easily enhanced with cinnamon or nutmeg for warmth, this old-fashioned slice can be enjoyed on its own or topped with fresh berries or whipped cream for extra flair. Simple ingredients make it accessible, and substitutions allow for vegan adaptation.

Updated on Thu, 06 Nov 2025 09:50:00 GMT
Creamy water pie sits elegantly in a flaky crust, showcasing minimal ingredients.  Pin It
Creamy water pie sits elegantly in a flaky crust, showcasing minimal ingredients. | platefullyjoy.com

A nostalgic dessert from the Great Depression era, water pie transforms simple pantry staples into a surprisingly creamy, custard-like treat with a delicate vanilla flavor and crisp, sugary crust.

I first tried water pie as a tribute to vintage recipes and was amazed at how such simple ingredients could create a dessert with satisfying texture and flavor reminiscent of custard pies from my childhood.

Ingredients

  • Unbaked 9-inch pie crust: Store-bought or homemade
  • Water: 1 1/2 cups
  • Unsalted butter: 4 tablespoons
  • Granulated sugar: 3/4 cup
  • All-purpose flour: 3 tablespoons
  • Vanilla extract: 1 teaspoon
  • Salt: Pinch

Instructions

Prep oven:
Preheat your oven to 400°F (200°C).
Prepare pie crust:
Place the unbaked pie crust into a 9-inch pie pan, crimping the edges as desired.
Add water:
Pour the water directly into the pie crust.
Combine sugar and flour:
In a small bowl, mix together the sugar and flour until thoroughly combined. Sprinkle this mixture evenly over the water in the crust.
Add flavor:
Drizzle the vanilla extract over the top and add a pinch of salt.
Add butter:
Slice the butter into thin pats and distribute them evenly over the surface.
Bake part 1:
Carefully transfer the pie to the lower rack of the oven. Bake for 30 minutes at 400°F (200°C).
Bake part 2:
Reduce oven temperature to 375°F (190°C) and bake for an additional 20 minutes, until the crust is golden and the filling is set with a slight jiggle in the center.
Cool and chill:
Remove from the oven and allow to cool completely to room temperature. Refrigerate for at least 2 hours before slicing for best texture.
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Sharing water pie at a family gathering sparked a fun conversation about creative ways our grandparents made sweet treats, and led everyone to appreciate simple ingredients in a new way.

Required Tools

You will need a 9-inch pie pan, a mixing bowl, measuring cups and spoons, and an oven for this recipe.

Allergen Information

This recipe contains wheat (gluten) and dairy (butter). If you use a store-bought crust, check for possible egg, dairy, or soy.

Nutritional Information

Per serving: 210 calories, 8 g total fat, 33 g carbohydrates, 2 g protein.

A nostalgic water pie, golden-brown crust filled with sweet, buttery custard delight.  Pin It
A nostalgic water pie, golden-brown crust filled with sweet, buttery custard delight. | platefullyjoy.com

Water pie is best made ahead, fully chilled, and served in neat slices. Enjoy its creamy simplicity for dessert or as a sweet breakfast treat.

Recipe FAQs

What kind of pie crust works best for this dessert?

A standard 9-inch pie crust, homemade or store-bought, provides the ideal base for the creamy filling.

How do I know when the filling is set?

The center should have a slight jiggle, while the edges look firm golden—the filling finishes setting as it cools.

Can I add spices for extra flavor?

Yes, cinnamon or nutmeg can be added before baking for warmth and complex flavor.

Is it possible to make this dessert vegan?

Use plant-based butter and a vegan pie crust for a dairy-free and egg-free version.

How should I serve water pie for best texture?

Cool completely, refrigerate for several hours, and slice carefully; serve chilled with berries or whipped cream.

What tools are needed for preparation?

You'll need a 9-inch pie pan, mixing bowl, measuring cups and spoons, and an oven for baking.

Water Pie Custard Vanilla

Creamy vanilla custard and crisp crust unite in a nostalgic treat made from basic pantry ingredients.

Time to Prep
10 minutes
Time to Cook
50 minutes
Overall Time
60 minutes
Recipe by Olivia Reed

Meal Type Cozy Sweet Treats

Skill Level Easy

Cuisine American

Makes 8 Number of Servings

Diet Info Vegetarian-Friendly

What You'll Need

Pie Components

01 1 unbaked nine-inch pie crust, store-bought or homemade
02 1 1/2 cups water
03 4 tablespoons unsalted butter
04 3/4 cup granulated sugar
05 3 tablespoons all-purpose flour
06 1 teaspoon vanilla extract
07 Pinch salt

Step-by-Step Guide

Step 01

Preheat Oven: Set oven temperature to 400°F and allow to preheat fully.

Step 02

Prepare Pie Crust: Arrange the unbaked pie crust in a nine-inch pie pan, crimping edges according to preference.

Step 03

Add Water: Pour water directly into the prepared pie crust.

Step 04

Combine Dry Ingredients: In a mixing bowl, blend granulated sugar and all-purpose flour until uniform; sprinkle evenly over the water in the crust.

Step 05

Flavor and Season: Drizzle vanilla extract and add a pinch of salt over the mixture.

Step 06

Add Butter: Slice unsalted butter into thin pats and distribute evenly across the top.

Step 07

Bake Initial Stage: Place pie on the lower oven rack and bake for 30 minutes at 400°F.

Step 08

Bake Final Stage: Reduce oven temperature to 375°F and continue baking for 20 minutes until the crust is golden and the filling is softly set.

Step 09

Cool and Chill: Remove from oven; let cool to room temperature, then refrigerate for a minimum of two hours prior to slicing.

Tools You'll Need

  • Nine-inch pie pan
  • Mixing bowl
  • Measuring cups and spoons
  • Oven

Allergy Notice

Be sure to review ingredients for allergens. When unsure, talk with a healthcare provider.
  • Contains wheat (gluten)
  • Contains dairy (butter)
  • Store-bought pie crusts may contain egg, dairy, or soy

Nutrition (For Each Serving)

Nutritional details are meant for general guidance. Don't rely on them for medical reasons.
  • Calorie Count: 210
  • Fats: 8 g
  • Carbohydrates: 33 g
  • Proteins: 2 g