You're thinking of the Tamboti (Spirostachys Africana). The resin will cause severe stomach upset if you use it to cook with. Also the resin can cause severe eye irritation. The good news is that small pieces of bark scattered in your clothes will act as a moth repellant and once it's properly seasoned it's great for carving.

Another tree that has masty resin is the Euphorbia Ingens (Candalabre Tree).......in fact any of the Euphorbia family. Good uses for the resin is to burn away warts and it can also be used to stun fish........just lop off a branch and chuck it in a waterhole.