Best croissants in Brussels?

Try Au Vatel in Place Jourdain. They have a large commercial bakery and are open 24/7. Probably can deliver large quantities too

The best I've had in Belgium:

Yasushi Sasaki
Avenue des Franciscains 10
1150 Brussels
Opening hours: 8:00 to 18:30, except Sundays (08:00-13:00 only) and Wednesdays (closed)

Everything they make is top quality. A bit more expensive than regular boulangerie/patisseries, but well worth it. Their almond croissants are as good as the best in Paris.

I found the ones at L'atelier (ma campagne opposite Fortis bank, St. Gilles) are the best - mouth-meltingly-buttery inside and lovely glazed-a-bit-with-sugar outside. I think they're 1€pp.

De Baer, ave. Heydenberg, Woluwe St Lambert. Evetything is good there :)

De Baer, ave. Heydenberg, Woluwe St Lambert. Everything they sell is good :)

Au Vatel and De Baer are definitely the two best choices.