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Okinawan Sweet Potato Pie

Okinawan Sweet Potato Haupia Pie

An elegant and sweet desert with a vibrant purple middle to the pie. 
5 from 4 votes
Prep Time 30 mins
Cook Time 1 hr 15 mins
Chill 1 hr
Total Time 2 hrs 45 mins
Course Dessert
Cuisine Hawaiian
Servings 32

Equipment

  • Oven
  • Pastry cutter
  • 9x13 inch pan

Ingredients
  

Shortbread Crust:

  • 2 cups flour
  • 1/2 cup sugar
  • 1 cup chopped butter chilled
  • 3/4 cup nuts (optional)

Sweet Potato Filling:

  • 1/2 cup softened butter
  • 1 cup sugar
  • 2 eggs
  • 2 cups mashed Okinawan sweet potatoes
  • 1/2 cup evaporated milk
  • 1 tsp vanilla extract
  • 1/4 tsp salt

Haupia Topping:

  • 1 (14 oz) can coconut milk
  • 1 cup milk
  • 1 cup water
  • 1/2 cup cornstarch
  • 1 cup sugar
  • whipped cream (optional) topping

Instructions
 

Shortbread Crust:

  • Preheat the oven to 350°F.
  • In a large bowl combine the flour, sugar, and chilled chopped butter. Chop the ingredients up using a pastry blender until it starts to have a crumbly texture.
  • Pour the mixture into a 9x13 pan and evenly spread it out. Flatten the crust using either your hand or a flat object.
  • Bake for 15-20 minutes.

Sweet Potato Filling:

  • Boil the potatoes until it is tender enough to pierce a fork through.
  • Peel and mash the potatoes in a large bowl. Measure out two cups of the mashed potatoes.
  • Cream the butter and sugar. Then add in the eggs and mix. Gradually mix in the mashed potatoes. Lastly add in the evaporated milk, vanilla extract, and salt. Mix well.
  • Pour onto the baked crust and bake again for 30-35 minutes.

Haupia Topping:

  • Combine coconut milk, milk, water, cornstarch, and sugar. Whisk until there are no clumps and sugar particles.
  • Heat it over medium heat and consistently stir until it thickens and bubbles.
  • Turn off heat and let it cool for a few minutes.
  • Pour onto the sweet potato filling and make sure it has spread out evenly. Let it chill in the fridge until the haupia firms up. About and hour or two.
  • It is optional to top it off with whipped cream. Cut into square pieces and enjoy!
Keyword coconut, crust, haupia, okinawan, pie, purple, shortbread crust, sweet potato, ube, yam