GRAPEFRUIT APPETIZER - #303 Great for HOT Summer Days! 1 can Grapefruit Sections 1 Cup Sugar 1 1/2 Cup Boiling Water Ginger Ale or 7 up Puree grapefruit sections in blender. Dissolve sugar in boiling water and add to the grapefruit. FREEZE. Spoon into glasses and fill with Ginger Ale or 7-up