Express.js template engine that can render JSON and unescaped strings

I'm looking for a template engine that meets a specific criteria:

• It can render JSON directly. For example:

This:

template.render("This is a json object: {{jsonObject}}", {jsonObject : {property: "string"}})

would output this:

"This is a json object: {jsonObject : {property: "string"}}"

And not this:

"This is a json object: [Object object]"

However, I should still be able to do this:

template.render("This is a property: {{jsonObject.property}}", {jsonObject : {property: "string"}})

And get this:

"This is a property: string"

• It works with express.js

• It uses normal HTML. Nothing like haml/jade.

• It can render unescaped values, the less boilerplate the better.

The reason: I'm working on a project where I want someone to be able to create an html document that uses a passed in JSON object inside of its script tags. There are simpler ways to achieve that goal I realize, for example the object could be stringified, but I think being able to manipulate that object with a templating engine as well would have some benefits.