Historical clue formulations

• Purple bubble tea flavor — 2026-09-17
• Boba tea flavor — 2026-08-12
• Source of a deal with The Devil? — 2026-04-16
• Popular flavor of bubble tea — 2026-04-08
• Root used in making poi — 2026-02-23
• Purple boba choice — 2026-01-07
• Root vegetable used for poi — 2025-11-24
• Powdered ingredient in sweet teas and smoothies — 2025-09-20
• Purple-flecked root vegetable — 2025-01-27
• Starchy root — 2024-11-17
• Starchy root vegetable — 2024-04-30
• Starchy tropical root — 2024-03-19
• Root in Hawaiian cuisine — 2023-10-24
• Polynesian staple — 2023-10-13
• Poi source — 2023-06-13
• Hawaiian crop threatened by the apple snail — 2022-09-30
• Tropical root vegetable — 2022-09-20
• Main ingredient in poi — 2022-09-18
• Tuber type — 2022-06-07
• Popular boba flavor — 2022-02-02
• ___ chips (Hawaiian snack) — 2021-06-07
• Pacific crop — 2021-05-09
• Certain paddy crop — 2021-01-23
• Poi ingredient — 2021-01-04
• Root used in making poi — 2020-11-02
• Root in Polynesian cuisine — 2020-08-20
• Pacific root vegetable — 2020-05-20
• Root in Polynesian cuisine — 2019-10-14
• Crop grown in paddies — 2019-09-28
• Bubble tea flavor — 2019-06-02
• Its leaves are used for the Hawaiian dish laulau — 2019-05-31
• Tahitian crop — 2019-04-09
• Root of Polynesia — 2018-12-30
• Luau tuber — 2018-10-16
• Root vegetable sometimes made into chips — 2018-07-31
• What poi is made from — 2018-07-02
• Powdered ingredient in sweet teas and smoothies — 2018-03-29
• ___ chips (trendy snack food) — 2018-03-13
• Food from a root — 2017-11-29
• Tropical tuber — 2017-09-07
• Poi source — 2017-06-29
• Ingredient in 22-Across — 2017-05-13
• Poi base — 2017-01-11
• Elephant's-ear — 2016-12-23
• Poi source — 2016-11-07
• Pacific dietary staple — 2016-08-12
• ___ cake (Chinese New Year delicacy) — 2015-11-18
• ___ cake (dim sum staple) — 2015-08-16
• Plant used in making poi — 2015-05-11
• Its edible root is called an eddo — 2015-04-17