The riper the kiwis, the better tasting this margarita will be. We'll let the kiwis ripen until they're super soft and sweeter. This recipe easily doubles for big parties! You can also substitute the orange liqueur and sugar with a 1/3 cup (60ml) of simple syrup and several hearty dashes of orange bitters if you prefer. The ice amount will vary depending on how big your ice cubes are. It is best to start with less ice and add more to reach your desired consistency.