In a small saucepan, combine kiwis, sugar, ¼ cup water, and lemon juice. Bring to a boil over medium-high heat. Reduce heat, and let mixture simmer, uncovered, until thickened, 15 to 20 minutes. Remove from heat.
Using a potato masher, mash kiwi mixture until slightly chunky. Let cool completely before transferring to an airtight container. Refrigerate until needed, up to a week.
Recipe by TeaTime Magazine at https://www.teatimemagazine.com/new-zealand-cheddar-scones-with-kiwi-jam/