Watermelon Jelly

Directions

1. Place watermelon in a food processor; cover and process until pureed. Line a strainer with 4 layers of cheesecloth and place over a bowl. Place pureed watermelon in prepared strainer; cover with edges of cheesecloth. Let stand 10 minutes or until liquid measures 2 cups.
2. Discard watermelon pulp from cheesecloth; place liquid in a large saucepan. Stir in sugar, vinegar, lemon juice and, if desired, food coloring. Bring to a full rolling boil over high heat, stirring constantly. Stir in pectin. Continue to boil 1 minute, stirring constantly.
3. Remove from heat; skim off foam. Ladle hot mixture into 5 hot half-pint jars, leaving 1/4-in. headspace. Wipe rims. Center lids on jars; screw on bands until fingertip tight.
4. Place jars into canner with simmering water, ensuring that they are completely covered with water. Bring to a boil; process for 10 minutes. Remove jars and cool.