In a stand mixer bowl fitted with a whisk attachment, whip the Heavy Cream until medium stiff peaks form. You can also use an electric hand mixer to do this.
In a microwave-safe bowl, add the cookie butter spread and microwave for 25-30 seconds, mix with a spoon and set the bowl aside.
In a separate bowl combine the Sweetened Condensed Milk, melted cookie butter, vanilla, maple syrup, and sea salt. Whisk until combined.
Pour the cookie butter mixture into the whipped cream and use a silicone spatula to fold the ingredients together without deflating the cream.
Transfer the ice cream to a freezer safe container and store it in the freezer for at least 8 hours. Before serving, I recommend leaving it on the counter for 15 minutes to soften before scooping! Place Biscoff cookies in a Ziplock bag and crush them with a rolling pin. Sprinkle crushed Biscoff cookies over each scoop and enjoy!