Blueberry Cheesecake Ice Cream
Combine 1/2 cup sugar and cornstarch in a small saucepan; gradually stir in water until smooth. Stir in blueberries and lemon juice; bring to a boil. Reduce heat to low and simmer, uncovered, until slightly thickened, about 5 minutes. Cover and refrigerate until chilled, about 30 minutes.