Here's an excerpt from the Minnesota Pollution Control Agency:

Composting "how to"

Getting your own compost bin started can be boiled down to four simple steps:

1. Make a compost bin or buy one,
2. Throw in  yard waste and mix in kitchen scraps
3. Add water as needed
4. Mix it up with a shovel or pitchfork once in a while

Here's the full article: https://www.pca.state.mn.us/waste/composting-your-backyard