Coconut Pie

Very rich pie.
Keep refrigerated.
2/3 c sugar
1/4 c cornstarch
1/2 tsp salt
3 c milk
4 egg yolks
2 TBS butter
1 TBS vanilla flavor
3/4 c coconut

Stir sugar cornstarch and salt in saucepan. Mix egg yolks with 1/2 c milk and pour through fine wire strainer. Add to pan. Add rest of milk. Cook over med heat, stir constantly until it boils and gets thick. Remove and blend in butte,r vanilla and coconut. Pour into baked pie shell.
Chill 3 hours before serving.
I use the egg whites to make meringue.