Crust

• 5 tablespoons unsalted butter
• 2 tablespoons firmly packed brown sugar
• 1 pinch salt
• 1 pinch ground cinnamon
• 1 pinch ground nutmeg
• 1/4 teaspoon almond extract
• 1 1/2 cups finely ground Oreo cookie crumbs (from about 19 Oreos)
• 1/2 cup finely ground roasted unsalted pistachios

Filling

• 16 ounces cream cheese
• 1 cup confectioners sugar, or to taste
• 1 tablespoon lemon juice
• 3/4 teaspoon vanilla extract
• 1/2 teaspoon almond extract, or to taste
• 1 pinch salt
• 1 heaping cup pistachio cream
• 1 tablespoon tahini, or to taste
• 2/3 cup cold heavy cream

Ganache

• 3/4 cup milk chocolate chips
• 3/4 cup heavy cream
• 2 teaspoons corn syrup
• 2 tablespoons finely chopped pistachios, for garnish