What did the burnt offerings consist of?

Ezra 3:3 (ESV)

3 They set the altar in its place, for fear was on them because of the peoples of the lands, and they offered burnt offerings on it to the LORD, burnt offerings morning and evening.

Each morning and evening, they would sacrifice a year-old lamb along with flour, oil, and wine (Exodus 29:38–42; Numbers 28:3–8). In modern terms, each morning and evening sacrifice would cost around $75 US.

The continuation of regular morning and evening sacrifices was a signal of complete compliance to the temple regimen.1