Add 1 cup water to the insert of an instant pot. Fit instant pot with trivet. Peel turnips and place on trivet. Lock lid; set valve to sealing. Program for manual-high and 22 minutes. Allow for natural pressure release. Use a blender or an immersion blender or a food processor to puree the cooked turnips.
Serve warm with butter, if desired. To freeze, add to a freezable container leaving an inch of headroom. (We used quart zip top freezer bags.) Label and freeze. To use after freezing, thaw and heat.
Stovetop
Bring large pot of water to a boil. While water is heating, peel turnips. Add peeled turnips to boiling water. Boil 20 min or until soft. Drain. Use a blender or an immersion blender or a food processor to puree the cooked turnips.
Serve warm with butter, if desired. To freeze, add to a freezable container leaving an inch of headroom. (We used quart zip top freezer bags.) Label and freeze. To use after freezing, thaw and heat.