Hello everyone I'm an Umbraco Newbie and I'm trying to implement cache on my website.

Let's say we have a website that specialize in cook recipes. We have hundreds of recipes, better: ~1000 recipes.

My Umbraco Backoffice looks something like this:

Recipes:
A:
    Avocado Breakfast Bowl
    .
    .
    more recipes starting with a A
B:
    Bar-B-Que Sauce
    .
    .
    more recipes starting with a B
.
.
Z:
    Za'atar chicken thigs
    .
    .
    more recipes starting with a Z

Every page of our website is made of cook recipes filtered in different ways:

featured cook recipes 
last cook recipes
.
.
most voted cook recipes
and so on.

The strategy I'm using at the moment is really basic: I'm using @html.CachedPartial wherever I can (15 seconds caching => https://24days.in/umbraco-cms/2017/the-one-with-performance/performance-boosts-for-umbraco/)

But since every 10 seconds I need to:

• Get all the descendants of the Recipes Tree (for later filtering by the various @html.CachedPartial).
• Rebuild a dropdown with all the cooks that have a recipe published on the site.

And these objects are used all over the application I would like to leverage the Umbraco Cache to:

• Cache an object with all the IPublishedContent Recipes
• Cache an object with all the cooks (as I need to search in every recipe for the cook name so that I can show only cooks that have published recipes) And bust the cache on a backoffice publish event.

Is this possible? Is this a good idea?

In the 2016 talk "pushing umbraco to the limit": https://vimeo.com/183622186 @11:30 ~ 14:15

they talk about implementing a custom CacheRefresher so I guess it can be done. bonus: this should work also in a load balanced application.

Here is the official doc: https://our.umbraco.com/documentation/reference/cache/ but it's a bit cryptic for me.

p.s.: In the last days I've read a lot about caching in both Umbraco and .Net and I've amassed a lot of information, as soon as I reorganize it I'm going to add it to this post for future reference.