How do I report a recent recharacterization of a roth ira contribution from march 2023 (that was counted towards our 2022 taxes)?

Our joint income in 2022 and 2023 was too great to allow for roth ira contributions. We paid the 6% penalty in our 2022 taxes then forgot about the issue until recently. We recharacterized the contribution to a traditional IRA recently. How do I report the recharacterization in our 2023 taxes that are due on October 15th?