Black Lake Brownies

Harry Potter gluten free brownie recipes on parchment paper

Gluten Free Brownie Recipes: Harry Potter Edition. Paying tribute to the 2nd task of the Triwizard Tournament, these are Black Lake Brownies!

  • Author: Sift RVA
  • Diet: Gluten Free


  1. 2 cups flour (gluten free or regular. This is a 1:1 recipe)
  2. 1 tsp salt
  3. 2 cups brown sugar (I used dark but you can use light)
  4. 3/4 tsp baking powder
  5. 1.25 cups olive oil
  6. 3 large eggs
  7. 1 tsp vanilla

For the frosting:

  1. 8 oz cream cheese
  2. 1/2 cup butter (8 tablespoons)
  3. 2 cups powdered sugar

For the tails:

  1. 1 bag white chocolate melts

Special Equipment:

  1. One tail silicone mold (I bought mine here)
  2. A small paint brush
  3. Grey or Blue / Green food coloring
  4. Black Food Coloring
  5. Deep Blue Food Coloring


First you are going to make your brownies:

  1. Mix together your dry ingredients in a bowl (whisk them together)
  2. Add your olive oil and vanilla and mix together with a wooden spoon.
  3. Add one egg and a time and make sure they are fully incorporated.

Baking it

  1. Take an 8×8 baking pan and grease it. Add parchment paper so you can remove them after it has baked.
  2. Set your oven to 350° and set aside until the oven is ready.
  3. Once it has hit 350F, place in the oven on the middle rack and bake for 30-35 minutes.
  4. Once it has done baking, remove from oven and place a toothpick in the middle. If it comes out clean, it is done.
  5. Leave on the counter to cool

For your tails:

  1. Add your melts into a bowl and microwave for 30 seconds at a time. If you do not feel comfortable using a microwave, place in a double boiler until they are melted.
  2. Stir the melts until smooth
  3. fill the silicon mold with the chocolate and place in the fridge until they are hard.
  4. Once they are hard- remove from the fridge and allow them to sit for a few minutes. This will allow the chocolate to loosen a bit and you will be less likely to break any of the tails when you remove them from the mold.
  5. Once they are removed from the mold, take your paint brush and food coloring and paint them.
  6. Once they are painted, place them back in the fridge until ready to use.

Making your icing:

  1. Add your cream cheese and butter together in your mixer and mix until they are smooth. Add your powdered sugar 1/2 cup at a time until it is fully incorporated.
  2. Separate the icing into 2 parts; you will use black food coloring for the icing that will go directly on top and the other part will be blue for the swirl aka “splash” that the tail will go into.

    Putting it together:

  1. Once your brownies have cooled, take the black icing and make swirls on top so that it almost looks like waves of water.
  2. Mark where you are going to cut and then put swirls on each of those squares.
  3. Remove your tails from the fridge and put one into each swirl.
  4. Cut the squares and then you are good to go!

Keywords: Gluten Free Brownie Recipes

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