marble cake

from WordNet (r) 3.0 (2006)

marble cake
    n 1: made of light and dark batter very lightly blended

from The Collaborative International Dictionary of English v.0.48

marble cake \marble cake\ n.
   A made of light and dark batter very lightly blended, so as
   to produce a variegated appearance resembling that of marble.
   [WordNet 1.5]