Mini Jello Watermelon Slices

Prep the Lime Rinds
2 Cut the limes lengthwise and use a spoon to scoop out the flesh, creating small "cups." Set the juice aside.
Stabilize the Halves
4 Place each lime half in a mini muffin tin or nestle them on a crumpled foil-lined tray so they don’t tip when filled.
Bloom the Gelatin
6 In a small bowl, sprinkle gelatin over 1/4 cup of cranberry juice. Let bloom for 5 minutes.
Heat the Juice
8 Warm the remaining 3/4 cup cranberry juice and 1/2 cup lime juice in a small saucepan (do not boil). Stir in the honey and beet powder if using.
Combine
10 Whisk the warm juice mixture into the bloomed gelatin until fully dissolved and smooth.
Fill and Decorate
12 Carefully pour the gelatin mixture into the lime halves. 
Chill
14 Refrigerate for 3–4 hours, or until fully set.
Slice and Serve
16 Once set, slice each lime half into two wedges. Serve chilled and enjoy!