Water Pie Vanilla Custard

Featured in: Sweet Treats

This nostalgic Water Pie brings together simple pantry staples to create a surprisingly creamy, custard-style dessert with a delicate hint of vanilla and a sugary, crisp crust. The easy preparation begins with an unbaked pie crust filled with water, topped by a mixture of sugar, flour, vanilla, and butter slices. Baked until golden and just set, this treat spends time in the refrigerator for perfect slices. Enjoy a taste of history or add cinnamon, nutmeg, berries, or whipped cream for extra flair. Ideal for beginner bakers and vegetarian diets, Water Pie is a sweet, comforting classic with roots in frugal ingenuity.

Updated on Fri, 07 Nov 2025 09:23:00 GMT
Creamy water pie cooling on a kitchen counter, topped with a golden crust.  Save
Creamy water pie cooling on a kitchen counter, topped with a golden crust. | ovenharmony.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 was charmed by the idea of baking something so humble yet delicious—water pie proves you don't need fancy ingredients for a classic slice of comfort.

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

Prepare oven:
Preheat your oven to 400°F (200°C)
Assemble crust:
Place the unbaked pie crust into a 9-inch pie pan. Crimp edges as desired
Add water:
Pour water directly into the pie crust
Mix dry ingredients:
In a small bowl, mix together sugar and flour until thoroughly combined. Sprinkle evenly over the water in the crust
Add flavorings:
Drizzle vanilla extract over the top and add a pinch of salt
Top with butter:
Slice butter thinly and distribute over the surface
Bake:
Carefully transfer pie to the lower oven rack. Bake for 30 minutes at 400°F (200°C)
Reduce temperature:
Reduce oven to 375°F (190°C), bake an additional 20 minutes until crust is golden and filling is set with slight jiggle
Cool:
Remove from oven, cool to room temperature, then refrigerate at least 2 hours before slicing
Sliced water pie served on a plate, showcasing its smooth custard center.  Save
Sliced water pie served on a plate, showcasing its smooth custard center. | ovenharmony.com

I shared water pie at a family gathering, and everyone was amazed at the simplicity—nostalgia and curiosity sparked instant smiles around the table.

Customizations

Try adding ground cinnamon or nutmeg for extra warmth, or serve with berries and whipped cream for a fresh flavor contrast.

Allergy & Diet Info

This recipe contains wheat and dairy. For vegan, use plant-based butter and a vegan pie crust.

Serving & Storage

Cool pie completely and refrigerate at least 2 hours before slicing. Leftovers keep in the fridge for 3 days.

Homemade water pie, featuring a sugary crust and hint of vanilla flavor. Save
Homemade water pie, featuring a sugary crust and hint of vanilla flavor. | ovenharmony.com

This old-fashioned dessert brings comfort and conversation—one bite is pure memory. Water pie delivers more than its humble name promises.

Recipe FAQ

What kind of pie crust should I use?

Either store-bought or homemade 9-inch pie crust works well, just ensure it's unbaked before assembling.

Can I add spices to Water Pie?

Yes, a pinch of cinnamon or nutmeg in the filling before baking adds a warm, fragrant note.

Is it necessary to refrigerate after baking?

Chilling for at least 2 hours after cooling ensures neat, custardy slices and the best texture.

How do I know when Water Pie is baked?

The crust should be golden and the filling set with a slight jiggle in the center when done.

Can Water Pie be made vegan?

Use plant-based butter and a vegan, dairy-free crust for a vegan-friendly version.

What can I serve with this dessert?

Fresh berries or whipped cream add a modern twist and enhance its sweet, creamy character.

Water Pie Vanilla Custard

Creamy vanilla custard dessert with a crisp crust inspired by historic pantry staples, ready in just an hour.

Prep duration
10 min
Cook duration
50 min
Complete duration
60 min
Created by Claire Johnson

Classification Sweet Treats

Complexity Easy

Heritage American

Output 8 Portions

Dietary considerations Meat-free

Components

Pie Assembly

01 1 unbaked 9-inch pie crust
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 of salt

Directions

Phase 01

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

Phase 02

Prepare Pie Shell: Arrange the unbaked 9-inch pie crust inside a pie pan, crimping the edges for an even border.

Phase 03

Add Water: Pour 1 1/2 cups water directly into the prepared pie crust.

Phase 04

Blend Dry Ingredients: In a mixing bowl, whisk together 3/4 cup granulated sugar with 3 tablespoons all-purpose flour until uniform, then sprinkle evenly over the water.

Phase 05

Add Flavorings: Drizzle 1 teaspoon vanilla extract across the surface and season with a small pinch of salt.

Phase 06

Distribute Butter: Slice the 4 tablespoons unsalted butter into thin pats and place them evenly on top.

Phase 07

Initial Baking: Set the pie on the lower oven rack and bake for 30 minutes at 400°F.

Phase 08

Final Baking: Reduce oven temperature to 375°F and continue baking for an additional 20 minutes, until the crust turns golden and filling is set yet retains a gentle jiggle.

Phase 09

Cooling and Serving: Remove from oven and cool completely at room temperature. Refrigerate for no less than 2 hours before slicing.

Necessary tools

  • 9-inch pie pan
  • Mixing bowl
  • Measuring cups
  • Measuring spoons
  • Oven

Allergy details

Review each component for potential allergens and consult healthcare professionals if you're unsure about ingredients.
  • Contains gluten due to wheat flour and standard pie crust.
  • Contains dairy from butter.
  • Store-bought crusts may include egg, dairy, or soy.

Nutritional information (each portion)

These values are approximate guidelines only and shouldn't replace professional medical guidance.
  • Energy: 210
  • Fats: 8 g
  • Carbohydrates: 33 g
  • Proteins: 2 g