Carefully remove rind from Uniq fruit and lemon using a vegetable peeler, making sure to avoid white pithy part of the rind. Cut Uniq rind into julienne strips to measure 1/4 cup. Cut lemon rind into julienne strips to measure about 2 tablespoons. Peel and section Uniq fruit, discarding pithy white part of rind; set aside 4 cups Uniq fruit sections. Peel and section lemon, discarding pithy white part of rind.
Place Uniq fruit and lemon in food processor; pulse 8 times or until coarsely chopped.
Combine Uniq fruit mixture, Uniq fruit rind, lemon rind, sugar, 2 cups water, and salt in a large saucepan; bring to a boil. Reduce heat to medium, and cook 1 hour or until thick, stirring occasionally. Cool. (Mixture will continue to thicken as it cools.)
Note: Store in airtight container in refrigerator up to two weeks.