Is there any place or shop near colombo where we can purchase edibles? (eg:pot brownies)

Hey everyone, I was wondering if anyone knows whether there are any places or shops around Colombo sri lankan, where people can find edibles (for example, brownies, cookies, etc.). I’m curious about what’s available locally, if at all, and whether it’s something people buy openly or more through private sellers.

Also, if anyone has an idea of what the typical prices are like, that would be super helpful to know. Just trying to get a sense of the situation here in Sri Lanka since it seems very different compared to other countries.