Tarek enlisted the help of party event planning company Glittery & Stylish Events for his little one's celebration in Buena Park, California, and only ET was there for the celebration.
"Happy Birthday to my BIG BOY!!!! I can't believe my little homie is 2 years old!!! LOL he attacked the cake!!" the 35-year-old reality star wrote on Instagram alongside a video of Brayden enjoying his cake.
Tarek has a deep appreciation for his children, Brayden and Taylor. Last month, he opened up about fatherhood in a moving Instagram post, revealing the kind of role model he hopes to be to his kids.
"My number one goal in life that I WILL accomplish is being the best dad, friend and mentor to my children," Tarej wrote. "I just love them so much and I want them to live the best life ever! I ❤️❤️❤️ you Tay and Bray!!"
Tarek and Christina separated in Dec. 2016, releasing a statement about how they would be going their separate ways but would continue to work together on their HGTV show.
For more on their separation, watch the video below.