Mahabharata 12.264.4

श्यामाकमशनं तत्र सूर्यपत्नी सुवर्चलातिक्तं च विरसं शाकं तपसा स्वादुतां गतम्

śyāmākamaśanaṃ tatra sūryapatnī suvarcalātiktaṃ ca virasaṃ śākaṃ tapasā svādutāṃ gatam

Our plain-language meaning of this verse is waiting for scholar review.