Since the only trigger on medium is recommend or like a post, once you publish a post on medium then recommend it to create a post on Tumblr with the title and url of the medium post
Then
![Tumblr (legacy) icon](https://assets.ifttt.com/images/channels/13/icons/monochrome_regular.png)
Create a text post
This Action will create a text post on your Tumblr blog.