In general: tap/click on the saved icon at the bottom of the home page. In the bottom right corner of the screen you'll see a plus symbol, tap/click on it. A drop-down menu will show, tap/click "create new recipe". Have fun.
Ainsley Welch
To add a recipe to a community: go to the community's page, bottom right corner of the screen is the plus symbol. Follow the rest of the instructions from the above reply.