What goes into making 15 bean soup?

[𝐀 𝐋 𝐄 𝐗 𝐈 𝐔 𝐒]

Hey everyone! I’m planning to whip up some 15 bean soup and would love to know what goes into it. Anyone have a favorite recipe or secret ingredients they swear by? Looking forward to hearing your suggestions and getting creative in the kitchen!