Mix the base

• Pour the heavy cream, milk and sweetened condensed milk into a bowl.
• Add the vanilla extract and salt.
• Whisk until smooth and fully combined.

Add the Biscoff

• Whisk the warmed Biscoff spread into the base until evenly incorporated.
• Fold in most of the crushed Biscoff cookies, keeping some for topping.

Churn the ice cream

• Pour the mixture into the ice cream maker and churn until thick and creamy.
• If using a Ninja Creami, freeze the base in its tub first, then spin it.

Freeze and serve

• Transfer to a container and freeze until firm.
• Scoop and top with the remaining crushed Biscoff cookies.