Mrs. Sarah Wilder celebrated her 106th birthday this week.

She resides at the Little Sisters of the Poor Sacred Heart Residence in Mobile, Alabama, where staff says she is "sharp as a tack."

Before residing at the Little Sisters of the Poor residence, Wilder volunteered there, starting a music exercise class for residents.

When asked about her secret to a long life, Wilder said she lives "a pure and simple life," but revealed the secret concoction that has allowed her to achieve such a feat:

Peanut butter and jelly sandwiches.

Doesn't get simpler than that!

Here's hoping Mrs. Wilder celebrated with as much PB&J as humanly possible!