Related Clues:

• Bitter, in poetry
• Sharp in manner, biting
• The pastry sounds bitter
• Of taste, sharp or acid
• Harsh and sharp in speech
• Sour like open cake
• Sharp tasting- like kind of pie?
• Sour, or an open cake
• A bit sour like open cake
• A bit sour, like flattish pie
• Sour in taste or harsh in tone
• Open pastry filled with apple or jam
• Pie with fruit filling
• Somewhat sour like flat cake
• Open cake with jam etc