A moist, comforting sponge pudding steamed or baked to perfection, drenched in warm pouring syrup or rich toffee sauce.
Whisk the milk, cream, sugar, and salep together until the sugar dissolves.
Cook over medium-low heat, stirring constantly, until the mixture thickly coats the spoon; do not let it boil.
Stir in the ground mastic and saffron, then chill the base completely.
Churn in an ice cream maker until thick, elastic, and stretchy.
Press into a container in thin layers and freeze for at least 4 hours.
Scoop into bowls and garnish generously with crushed pistachios.