Make the pistachio paste: Add the pistachios to a medium heatproof bowl and pour in the hot water. Cover with a kitchen towel and let sit for 10–15 minutes. Drain, then use the towel or your hands to gently rub the purple skin away from the pistachios and discard.
Transfer the pistachios to a food processor and process into a paste, stopping and scraping down the sides of the bowl as needed, about 5 minutes. Store any leftover pistachio paste in an airtight container in the refrigerator for up to 2 weeks.
Make the ice cream: In a large bowl, combine the sweetened condensed milk, 2 tablespoons pistachio paste, the vanilla, cinnamon, salt, and green food coloring and whisk to combine.
In the bowl of a stand mixer fitted with the whisk attachment (or a large bowl with an electric hand mixer), whip the heavy cream on medium-high speed until stiff peaks form, 7-8 minutes. Tip: Chill the bowl of the mixer in the freezer for a couple minutes to get cold before adding the cream. This will help the cream whip up more quickly.
Gently fold the condensed milk mixture into the whipped cream with a rubber spatula until well combined. Add the chopped pistachios and gently fold to incorporate.
Transfer the ice cream to a 9 x 5-inch loaf pan. Sprinkle more chopped pistachios over the top. Freeze for at least 6 hours, preferably overnight until completely frozen.
Scoop and serve.
Enjoy!
Nutritional Facts
Per 6 servings
Calories: 881
Carbohydrate: 59g
Fat: 69g
Fiber: 9g
Protein: 23g
Sugar: 43g
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