Purple Sweet Potato Pie with Coconut Topping (Haupia)


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This vibrant Purple Sweet Potato Pie with Coconut Topping is easy to make and a real showstopper! Try this sweet Hawaiian recipe for the next family gathering or for Thanksgiving and leave everyone impressed!

Okinawan Sweet Potato Pie with Haupia Coconut Topping - a dessert recipe from Hawaii

Fans of exotic desserts will love this Hawaiian Purple Sweet Potato Pie with Coconut Topping! 

Disclaimer: A note about affiliate links in this post: some of these links will take you to Amazon where I may receive a small percentage of sales, at no extra cost to you. 

I know August is a bit early to bring out the Sweet Potato Pie, but I am so in love with this vibrant, purple beauty that I couldn’t hold back any longer. And this one is quite different from the Sweet Potato Pies that pop up around Thanksgiving, anyway. Both in looks and flavor!

Purple sweet potatoes, or Okinawan sweet potatoes,  are a pretty recent addition to my family’s menu but we already would not want to miss them. I could write a whole paragraph about the versatility and don’t even get me started on the health benefits. Just head over to my recipe for Purple Sweet Potato Salad, if you want to learn a bit more about them. They are incredible.

Those of you, who have been to Hawaii might have gotten the chance to try the famous Okinawan Sweet Potato Pie with Haupia – a pie made from purple sweet potatoes topped with a layer of homemade, rich coconut custard and toasted sweetened coconut! I have never been to the island myself but if Hawaiian desserts are all that yummy, I would consider putting it right on the bucket list.

Hawaiian Purple Sweet Potato Pie with Haupia Coconut Topping

Browsing the net for creative recipes using Okinawan sweet potatoes, I came across Samantha’s genius pie recipe and knew that I would need to try it myself! The pie filling uses pureed purple sweet potatoes and a mix of evaporated milk and coconut milk, which makes it both rich AND silky. Coconut goes so well with the floral sweetness of the Okinawan purple sweet potato and gives the whole pie a certain island flair. You will love it!

Lila Süßkartoffel Pie mit Kokosmilch Topping - ein Rezept aus Hawaii

A note before you start: Begin with the pie crust. Here’s how I make my Pie Crust with a Food Processor.  The crust needs to be blind baked for quite some time, but you can bake your purple sweet potatoes in the oven at the same time. Check out my note on the low-and-slow blind baking method!

The purple sweet potato pie should cool almost completely before adding the haupia layer. The haupia layer takes only about 10 minutes to make but the pie does need to sit in the fridge for another 2 hours to allow the coconut layer to set. I simply made the pie the night before and then the haupia layer in the morning, so that I could serve it for tea.

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A note about affiliate links in this post: some of these links will take you to Amazon where I may receive a small percentage of sales, at no extra cost to you. 

Lila Süßkartoffel Pie mit Kokosmilch Topping - ein Rezept aus Hawaii
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Purple Sweet Potato Pie with Coconut Topping ( Haupia )

Lovers of exotic desserts will love this vibrant Purple Sweet Potato Pie! This popular Hawaiian dessert is topped with a rich Coconut Custard (Haupia) and sprinkled with toasted sweetened coconut! 

Course Dessert
Cuisine hawaii, usa
Prep Time 45 minutes
Cook Time 1 hour 30 minutes
Total Time 2 hours 15 minutes
Servings 12 portions
Calories 400 kcal
Author Kiki Johnson

Ingredients

  • 1/2 recipe Pie crust

For the pie filling

  • 3 medium okinawan purple sweet potatoes 500 g
  • 150 g butter, melted
  • 1 can evaporated milk
  • 1 can full fat coconut milk
  • 1 tsp vanilla
  • 2 large eggs
  • 150 g sugar
  • 1 pinch salt

For the Coconut Custard - Haupia Layer

  • 45 g sugar
  • 27 g cornstarch
  • 125 ml water if using rum, only 100 ml
  • 2 tbsp rum optional
  • 1 can full fat or light coconut milk
  • 25 g sweetened shredded coconut, lightly toasted 1/4 cup

Instructions

  1. Prepare the pie crust (recipe here or your go-to recipe) according to the recipe instructions for blind baking. 

  2. Wrap the purple sweet potatoes in foil, prick them with a fork and bake them together with the pie crust or up to 2 days in advance until tender. I bake mine at about 180 Celsius (356 F) for 45 to 50 minutes.

  3. Preheat the oven to 175 Celsius (350F). Peel the baked potatoes and add them to the bowl of your food processor. Then,  add melted butter, evaporated and coconut milk, eggs, and vanilla. Process everything together until it becomes a smooth creamy consistency. 

  4. Pour purple sweet potato filling into your cooled pie shell and bake for 40-45 minutes.  Should your pre-baked pie crust turn too dark, you can cover the whole pie with foil. Your pie is done when you can inset a knife into the potato layer and it comes out clean. 

  5. Once the pie is baked, remove it from the oven and allow it to cool to room temperature for a few hours.  I like to place it in the fridge overnight.

  6. For the Haupia Topping, make a slurry by stirring together sugar, corn starch, water and, if using,  rum. In a medium pot, bring the coconut milk to a boil and stir in the slurry. Stirring all the time, let the custard cook for about 5 minutes or until it turns shiny and reaches a glue-like consistency.

  7. Pour the custard topping on top of the cooled sweet potato pie and sprinkle with toasted coconut

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Purple Sweet Potato Pie with Coconut Custard Topping - a Hawaiian recipe

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6 Comments

  1. Wow !!! Schaut das Lecker aus. Vielen dank. Das Rezept ist bereits ausgedruckt und kommt demnächst bei uns auf den Tisch!

    Lg Betina

  2. Liebe Kiki,

    das finde ich jetzt schon abgefahren mit den lila Süßkartoffeln. Aber leider habe ich die bei uns noch weit und breit nirgends gesehen. Ansonsten würde ich deinen Kuchen sofort nachbacken. Geht aber leider nicht und das mit dem selber anbauen dauert mir jetzt doch ein wenig zu lange. Schade, aber vielleicht finde ich ja doch irgendwann und irgendwo einmal so eine lila Süßkartoffel.

    Es grüßt trotzdem aus dem Wilden Westen von München

    Martin

    • Hallo lieber Martin! Danke dir. Es freut mich, dass dir mein Rezept so gut gefällt. Wenn du bei dir in der Nähe keine lila Süßkartoffel findest, kannst du das ganze auch mit Hokkaido Kürbis oder normalen Süßkartoffeln versuchen! Wenn du Süßkartoffeln recht saftig sind und wenig stärkehaltig, empfehle ich, etwas weninger Kondensmilch zu nehmen! Vielleicht findest du die Sorte Okinwawa ja eines Tages. Das Rezept läuft ja nicht davon. Vlg Kiki

  3. Wie lecker klingt das denn?! Das wird unbedingt ausprobeirt! Vielen Dank für die Inspiration!
    Gruß scrapkat

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