Selena Gomez and Benny Blanco; Gomez poses with a cake shaped like Blanco’s new cookbook. PHOTO: SELENA GOMEZ/INSTAGRAM

Selena Gomez is one proud girlfriend.

On Tuesday, April 30, the “Love On” singer, 31, shared a snap celebrating the release of her boyfriend Benny Blanco’s new cookbook, Open Wide.

“So proud of @itsbennyblanco – Open Wide is out now!!,” wrote the actress as she lowered her face to meet a cake that was shaped and decorated like his new book.

The following slide then featured Gomez flashing a beaming smile as she sat next to the music producer, 36, while looking at the cake.

Blanco then wrapped his arms around his girlfriend in the final shot as he grinned at the camera, while Gomez, who wore a black and white polka dot dress for the celebrations, smiled and looked in a different direction.

“YAY! It’s finally out NOW!!,” the “Calm Down” artist added on her Instagram Stories as she shared a photo of the book lying on grass.

Blanco also reposted snaps on his Instagram Stories which celebrated the release of Open Wide.

Appearing on The Tonight Show Starring Jimmy Fallon on April 30, Blanco shared a video of himself and the host, 49, eating a purple cake to celebrate. “Open Wide, @itsbennyblanco & Jimmy 💜 #FallonTonight,” his caption read.

Benny Blanco and Selena Gomez.SELENA GOMEZ/INSTAGRAM

Meanwhile, Gomez and Blanco’s celebration of his new cookbook comes after the Only Murders in the Building star shared a photo of a sweet note Blanco had written for her.

“I Love You! Sleep Well! I Made You Steak!,” the handwritten tissue paper note read as Gomez shared a snap on her Instagram Stories on April 29.

Earlier this month, Blanco told PEOPLE that sometimes he and Gomez get takeout due to cooking a lot.

“It’s so funny. Sometimes when you’re cooking all day, you’re doing all this stuff, you’re just like, ‘Should we just get pizza? Or should we just go get tacos?’ ” he said of meals with his girlfriend.

“You’re writing all day. You’re doing this all day. In your free time, you’re just like, ‘Oh my God, I’m not doing this s—,’ ” he added.

“She definitely loves it,” he continued about his debut cookbook. “Selena, my friends, my family, they all knew that I cooked so much and it was a long time coming.”