marrowfats

/ˈmɛroʊˌfæts/
noun
  1. Plural form of marrowfat; large, starchy peas used in cooking, especially for mushy peas.
    • The store sells both fresh garden peas and dried marrowfats.
    • Marrowfats need to be soaked before cooking to soften them.
    • She added the marrowfats to the pot and simmered them until tender.