Historical clue formulations

• Add sugar to — 2020-11-02
• Make more enticing — 2013-09-29
• Make more attractive — 2013-09-20
• Dulcify — 2010-07-23
• Better, as an offer — 2009-09-13
• Make more tempting, as a deal — 2008-10-12
• Make more attractive — 2005-01-16
• Make more attractive — 2003-03-28
• Make more attractive — 2001-01-10
• Make more attractive — 1999-04-24