National Croissant Day 2019: January 30, 2019 Posted on Published: January 30, 2019 - Last updated: January 31, 2019 It’s #NationalCroissantDay! I’m still dreaming about this delicious, flaky, buttery matcha croissant Mr Holmes Bakehouse in San Francisco. Do you love your regular croissant or ones with a lil’ extra something? Sharing is caring!