Help my brain?

I bought some lavender sugar some time ago and I’m thinking it might be fun to incorporate into a cookie for our Christmas but all I can think of is lavender shortbread. What else would it be good in, do you think?

Is lavender “Christmas-y” enough? Should I be thinking of something else?

I also have a jar of vanilla sugar. Any ideas for that? Besides, ya know, vanilla shortbread. :D