Harry Potter Polyjuice Potion Recipe

Made famous in Harry Potter and the Chamber of Secrets Polyjuice Potions allows one to transform into another; this polyjuice potion recipe is easy & fun.

  • Author: Sift RVA



For your polyjuice potion you will not need toenails or bloomslang, but you will need the following:

  1. Edible Cookie Dough (recipe will follow)
  2. Chocolate Chips
  3. Toffee Bits
  4. 1 cup milk (I used 2% but you can use whole should you choose)
  5. 16 oz yogurt (for a healthier version) or sour cream (for a less healthy version)
  6. 1.5 tbsp vanilla (I used bean paste)
  7. 1 cup + 2 tbsp sugar
  8. 2 packets of gelatin (I used knox)
  9. 1 cup heavy cream

Recipe for edible cookie dough:

  1. One stick butter- at room temperature
  2. 1/2 cup (1/4 cup brown sugar + 1/4 cup white)
  3. 1 1/4 cup flour
  4. 23 tbsp milk or cream
  5. toffee bits
  6. chocolate chips
  7. 1 tsp vanilla
  8. 1 tsp almond


First, you are going to make your edible cookie dough. What I love about this recipe is that it is egg free (so no worries about salmonella) and it is not too sweet because you will be adding it to something sweet.

  1. Beat your butter in your mixer with the paddle attachment.
  2. Add your sugars, and cream them together. Allow them to beat together for about 3-5 minutes because it will become light and fluffy.
  3. Once it is all nice and fluffy, you are going to add your flour. It is going to be really clumpy and appear to not be turning into a dough. This is when you add your milk or cream.
  4. Once your milk and or cream have been added, it should be coming together, add your vanilla and almond extracts, along with the chocolate chips and toffee bits.
  5. Voila! Edible cookie dough- set this aside while you make your mousse aka polyjuice potion!

How to make your mousse:

  1. In a pot, take your one cup of milk, 2 packets of gelatin, and vanilla, and whisk together.
  2. Place it on the stove on medium heat, you do not want this to boil. I repeat- do not boil. You simply want this to simmer.
  3. Whisk this while it continues to simmer- once you get a good simmer- remove your pot from the heat and allow it to cool.
  4. Take your 16 oz of yogurt or sour cream and mix it together with the sugar. You want it to come together so not the sugar is not visible and it appears smooth.
  5. Meanwhile, place your cream in your mixer and beat your whipping cream to stiff peaks.
  6. Once your cream is at stiff peaks, add it 1/3 at a time to your bowl with your yogurt. It is at this point that you may want to add the grey food coloring to match the color from the movies. Once all of your cream has been added to the bowl, move the entire mixture back into the bowl for your stand mixer.
  7. You are going to put your mixer on slow and slowly add your mixture with the gelatin in it. As it pours in it will add the gelatin to your mixture.
  8. Decide what glasses you want to serve your polyjuice potion in, and add your cookie dough along with extra chocolate chips, and toffee.
  9. Pour your “potion” recipe over this in the glasses and place in the fridge for a minimum of 3 hours. Chilling it will allow your polyjuice potion recipe to set!
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