Hello @ledtear,
At first, to use the recipe feature, you need to activate the plugin “TP recipe” which is recommended by the plugin itself.
After the activation, you will have the “Recipes menu on the Admin Panel. Now begin to add the recipe.
Finally, go to Admin panel > Appearance > Menus and add the recipe category to the menu.
http://prntscr.com/kjatnh
If you have any confusion further then yuo can refer to our themes official documentation given below:
http://themepalace.com/instructions/themes/yummy-pro/
If you have any confusion further please let us know.
Thank you.
Best Regards!!