Add a couple of cups of water to a small saucepan and place it over a stovetop set to high heat. When the water starts to boil, add in the pistachios.
Let pistachios simmer for 3-4 minutes.
Then, drain them (using a colander) and place them on a clean kitchen towel. While they are hot, using part of the kitchen towel folded over or another clean kitchen towel, rub the pistachios vigorously. The skins will start to separate. The ones that don’t, the skins can be easily peeled off while they are warm.
Make sure the pistachios are dry. Then, place the pistachios on a baking tray and roast them for about 9 minutes.
Remove from the oven and place the skinned and roasted pistachios into a food processor (or high-speed blender) along with the powdered sugar, avocado oil, salt, and almond milk.
Blend until the mixture is smooth.
Spoon the pistachio cream into a mason jar or container with a lid. Wait until the pistachio cream has completely cooled down before securing the lid on.
