If you thought it up on your own, you invented it, but you weren't
neccesarily the first to have the idea :-)

I invented coating buttered bread with poppy seeds before making grilled
cheese. Why, the Food Network magazine even had a 50 recipe insert for
grilled cheese, yet no one mentioned poppy seeds! I am now developing
other ideas for poppy seeds.

I invented caramel apple in a spoon-put red apple Jelly Belly's, green
apple Jelly Belly's, caramel chips, miniature choc chips, and chopped
pecans in a bowl, and eat with a spoon. Dead ringer. (OMG good!) This
would make an excellent gift in a pretty jar.