01 - In a mixing bowl, dissolve the red gelatin in 1 cup boiling water. Stir until fully dissolved. Add 1/2 cup cold water and mix. Evenly divide the mixture among 8 small clear cups. Refrigerate for a minimum of 1 hour or until set.
02 - Combine instant vanilla pudding mix and 1 1/4 cups cold milk in a separate bowl. Whisk for about 2 minutes until smooth and thickened. Gently fold in 1 cup whipped topping. Once the red layer is fully set, spoon the pudding mixture over the red layer in each cup and spread gently. Chill for 30 minutes.
03 - In a clean bowl, dissolve the blue gelatin in 1 cup boiling water. Stir well, then incorporate 1/2 cup cold water. After the white layer has set, carefully pour or spoon the blue gelatin mixture onto the white layer. Return the cups to the refrigerator.
04 - Refrigerate assembled cups for 2 to 3 hours, or until all layers are fully set.
05 - Before serving, top with additional whipped topping, fresh berries, and sprinkles as desired.