2env. KNOX Unflavored Gelatin1/4 oz. each, affiliate link
2Tbsp. sugar
2cupscarbonated lemon-lime soda
1-1/4cupsboiling water
2pkg. colored flavored Gelatin like Jello Berry Blue3 oz. each, affiliate link
1/4cupcold water
Instructions
MIX unflavored gelatin and sugar in medium microwaveable bowl until blended. Stir in soda. Let stand 3 min. or until gelatin is softened. Microwave on HIGH 3 min. or until gelatin and sugar are dissolved, stirring after each minute. Pour into 8-inch square dish (affiliate) sprayed with cooking spray.
REFRIGERATE 25 to 30 min. or until set but not firm. Meanwhile, add boiling water to flavored gelatin mixes in separate medium bowl; stir 2 min. until completely dissolved. Stir in cold water. Cool 15 min.
POUR flavored gelatin gently over clear gelatin layer in dish. Refrigerate 1 hour or until firm. Cut into squares.