Place the strawberries, ice cream and oat milk in a blender or liquidiser and blend for 15-30 seconds, until smooth.
Optional: Add sugar to taste when blending if the strawberries aren't very sweet, or if you just got a sweet tooth...
Serve immediately while cold. Optionally decorate with vegan whipped cream, fresh strawberries, chocolate shreds, dried raspberries, sprinkles, or other toppings of your choice.
* We find the milkshake sweet enough without adding extra sugar, if the strawberries are reasonably ripe. You can always try the shake after blending, add sugar and blend again until you are happy with the sweetness.