Sugar has the property to befriend someone or to increase love in a relationship. I don't think it can be used to grant wishes or for protection spells, unless you use it to grant a love wish but then you would need to mix in something else for wishes.
I like to use dandelion when wishing for something. You can put some dandelion in an envelope/ziplock bag/small box, write your wish in a piece of paper and put it in with the dandelion. Use symbols if you like, charge, chant then just wait for the wish to come true.
Or did you wanted the spell for protection?