Burger King Birthday Pie 2025. On sunday, folks can get a free original crispy. Burger king is celebrating its 70th anniversary with the introduction of the birthday pie slice.
A birthday pie slice is a serving of pie that is used to celebrate birthdays as an alternative to traditional birthday cake. In celebration of its 70th anniversary, burger king is rolling out a new $6 birthday meal deal, exclusively to bk rewards members via the bk app or online at bk.com.