Subreddit groups

I think reddit would be better with the ability to group subreddits into named bags/groups and have those groups listed at the top of the page before the subreddit listings.

So an an example. I go to r/food, r/cooking, r/recipes and r/baking. Now all of these are pretty small themselves, so I need to go to them individually to get the most from them. I think it would be great if I could create a group named "FOOD" and have it just be r/food+cooking+recipes+baking.

I personally go to quite a few subreddits and would really love to just see tech or just see food or just see software development/CS stuff.