The museum, located in downtown L.A., has been described as something akin to Willy Wonka's fantastical chocolate factory. Visitors get two free ice cream samples with the price of admission, and there is even a sprinkle pool, which is exactly what it sounds like.
Paltrow also penned a super sweet message for her daughter, which she posted alongside a beautiful snapshot of her young doppelganger.
"Happy 13th birthday, you gorgeous human," she wrote alongside the pic. "You light up every room, my heart, the world. You. Are. Everything. I love you, schnapps."
Aside from Apple's b-day, the family also celebrated Mother's Day on Sunday, and Paltrow shared a pic of the sweet surprise her little girl left for her in the form of a post-it note left on her coffee mug, which read, "You mean a latte to me."