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Close-up of a crustless rhubarb custard pie with golden top and vibrant pink rhubarb chunks, served on a white plate outdoors.

Crustless Rhubarb Custard Pie

This crustless rhubarb custard pie is a light, sweet-tart dessert that’s rustic, elegant, and incredibly easy to make. It’s a springtime tradition that celebrates rhubarb’s tangy flavor with a silky, vanilla-scented custard.
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Course Dessert
Cuisine American
Servings 8 slices
Calories 190 kcal

Equipment

  • 9-inch pie plate
  • Blender
  • Measuring cups and spoons
  • Knife and cutting board
  • Spatula or spoon
  • Oven mitts

Ingredients
  

  • 3 cups fresh rhubarb diced
  • 1/3 cup all-purpose flour or gluten-free alternative
  • 3/4 cup granulated sugar
  • 1/2 tsp baking powder
  • 1/2 tsp salt
  • 4 large eggs
  • 1 tbsp vanilla extract
  • 1 cup milk
  • 1 tsp butter for greasing the pie plate

Instructions
 

  • Preheat the oven to 375°F (190°C). Dice the rhubarb into bite-sized pieces.
  • Grease a 9-inch pie plate with 1 teaspoon butter. Spread the chopped rhubarb evenly in the bottom.
  • In a blender, combine flour, sugar, baking powder, salt, eggs, vanilla, and milk. Blend on medium for 1–2 minutes until smooth and frothy.
  • Pour the custard over the rhubarb in the pie plate. Leave some space at the top.
  • Bake for about 40 minutes, until the edges are golden and the center is just set.
  • Let cool for 10–15 minutes before slicing. Serve warm, at room temp, or chilled.

Notes

To make it dairy-free, substitute milk and butter with plant-based alternatives. Add orange zest for a citrus twist or a crumble topping for texture.
Keyword Custard, Gluten-Free Optional, Rhubarb, Spring