You have to be careful not to overpower the waffle combo as it's quite delicate but increases in strength slightly with a steep.
"buttermilk" adds to the waffle and ice cream,
Ice cream works really well with blackberry, it contrasts again the blackberries tartness making them more prominent.
I've recommended 10 days steep but if you can leave it longer it really benefits it.
Added 1 drop of "ultimate brown sugar" and
2 drops of (cap) "super sweet"..
Blessings.