Preheat Oven to 400 Degrees
Cut butternut squash in half, scoop out seeds
Place halves face down in a pan and cover with an inch of water
Bake in a 400 degree oven for 40 minutes to 1 hour - be sure the “shell/skin” puckers and halves feel soft then scoop squash “meat” out of the shell
Place squash "meat" into your choice of appliance for pureeing and begin pureeing.
Add FRESH breastmilk or water as necessary to achieve a smooth, thin consistency.
Place in ice-cube trays.
Freeze! Once Frozen place in plastic freezer storage bag.