When Tiffani Thiessen isn't busy teasing a potential reboot of White Collar, she's celebrating a sweet moment in her personal life!

Fans of the longtime actress may remember she married artist and actor Brady Smith in an intimate ceremony back in July 2005. The duo have since expanded their family by welcoming daughter Harper and son Holt, but Tiffani hasn't forgotten one of the most important days in her relationship.

As she posted a sweet Instagram photo of the couple eating cupcakes on July 9, the Saved by the Bell alum wrote a short but romantic tribute to a moment that changed their lives forever.

"Happy 19th anniversary babe," she penned in the caption. "You continue to sweeten my world. Love you so so so much! ❤️."

Given how she and Brady aren't afraid to showcase their love online, folks loved seeing Tiffani make a public declaration to her husband.

"Wishing you the Happiest of Anniversaries and many more to come!! ❤️," one person wrote in the comments. "Aww happy anniversary to the best couple ever 🥂🎉💕," another replied. "Aww so sweet you guys!! Happy Anniversary @tiffanithiessen," a different follower added.

Tiffani wasn't the only one reminiscing about her marriage that day. Brady also shared a romantic post commemorating the occasion on Instagram. As he posted a snapshot of the couple hugging while sitting outside, he couldn't help but declare how much he's enjoyed spending their lives together.

"Happy 19th Anniversary!" he passionately wrote to her in the caption. "I know it sounds cliche, but I truly love you more & more with each passing year. 🖤."

What's more, Tiffani wrote back to Brady with her own sweet thoughts. "@bradysmithhere 19 years and counting babe," she replied. "What an adventure huh? Love you to the moon and back baby!!!"

This isn't the only time the couple has publicly marked the special day. Back in July 2023, Tiffani wrote a romantic note to Brady as they celebrated their wedding anniversary with a vacation in Point Reyes, California.