Step 1

In a large glass measuring cup, whisk together the water and enough food coloring to achieve a bright blue. Pour the mixture into a medium saucepan.

Step 2

Whisk in the powdered sweetener and blueberry extract to taste. Sprinkle the surface with the gelatin and let sit 3 minutes to bloom.

Step 3

Turn the heat on to medium low and whisk until the gelatin dissolves completely. Do not let it come to a boil.

Step 4

Divide the gelatin between 4 glass dessert cups (1/2 cup capacity each). Add a few fresh blueberries if desired. Refrigerated 3 hours until set.

Step 5

In a medium saucepan, combine the water and cranberry juice. Whisk in the powdered sweetener and strawberry extract to taste. Sprinkle the surface with the gelatin and let sit 3 minutes to bloom.

Step 6

Turn the heat on to medium low and whisk until the gelatin dissolves completely. Do not let it come to a boil.

Step 7

Divide the gelatin between 4 glass dessert cups (1/2 cup capacity each). Add a few chopped strawberries if desired. Refrigerated 3 hours until set.

Step 8

In a large bowl, whip the cream with the sweetener and vanilla extract until it holds stiff peaks. Pipe or dollop on the top of the set jello cups.

Step 9

Add the blueberries and strawberries to the tops of each cup before serving.