Puree cashews, frozen bananas, coconut cream, vanilla, 3 tbsp maple syrup and a small tsp locust bean gum in a high-speed blender till creamy. Transfer into a container, smooth with a spoon and put into the freezer during next working step.
Puree pitted Medjool dates, 3 tbsp maple syrup, sea salt, a dash of cinnamon and 2 tbsp plantbased milk in a high-speed blender. Swirl in the date paste into the ice cream base. Smooth again. Put into the freezer for at least 5 hours or overnight.
Cut the pineapple (without its hard core) into slices. Heat the coconut oil in a grilling pan (or put the slices onto your barbecue grill) and roast the pineapple slices 2-3 minutes from each side till golden brown. Drizzle 1-2 tbsp of maple syrup over the slices while roasting.
Serve grilled pineapple slices with ice cream scoops, drizzle over some date syrup and garnish with roasted coconut flakes and mint leaves.