most slicers (cura really isn't much good) will offer either a purge strip, or an outline round the print that gets rid of the blob and helps prime the nozzle.

I use a 2 line outline on the delta and purge strips on the others. I'll often use an outline as well - just to really make sure.

Outline and brim settings are often the same.
so you make a 2 line brim that is 2-3 mm offest from the print. A 0mm offset should make a brim.