The pit is a protective shell around the actual seed, and you want to get the seed out without damaging it.
If you look at the side of the pit, you can see in the pictures that the pit is significantly thicker where the seed is, and should be quite thin at the end where the stem originally connected the fruit to the tree. You want to have a large enough pot with good drainage to plant the seed in.
I used a heavy chefs knife to cut the stem end off the pit. I cleaned an old pot that used to have some herbs growing in it, added a bunch of rocks in the bottom to encourage good drainage, and then filled it partially with soil.
The tree won't stay in this pot long past sprouting, so I only have about 4 inches of soil depth below the seed.
Andrew Carberry has been working with school gardens and farm to school programs since 2008.
He is now a Program Associate at Winrock International, where he works on the Community Based Food Systems Team.
I didn't keep track of the dates like I should have, but it took roughly 8 weeks before I saw the seedling had sprouted.
I decided to name him Fredrich, and think of him as male.
With any luck, it will eventually bear fruit...we'll see.
I'm sure there are a hundred ways to cut a mango - The pictures show my own preferred method - but anything that gets the pit from the middle works for now.