The subscription site Roots Ireland has a transcription record of a birth of a Catherine Slattery on January 25 1895. No father was shown and the mother was Bridget Slattery. They lived in Grange. There was an annotation that a Johanna Burke registered the birth on March 25th.
Parents were required to register a birth within 30 days or they would be fined. To avoid a fine, parents gave a later date as the birth date to avoid the fine. I think that would explain why the baptism was in late December but register as aJanuary date.
Unfortunately when I searched the free site www.irishgenealogy.ie I could not locate the actual record.
You asked about a copy of the baptismal record. The parish register for 1894 is not online. If you wanted a baptismal certificate, you would need to write to the church.
Let me know if you have any questions.