Mini key lime pie bites are easy to take on-the-go or serve for a brunch. Whip remaining cream to soft peaks, spoon on to each pie and decorate with lime jellies. Key lime pie is a classic summertime dessert. Stir in condensed milk, lime zest and juice. Spoon into cupcake cases; chill for 2hr. My youngest son even asked for Key Lime Pie … Our mini key lime pie bites take under 30 minutes to make and bake. In my household it’s a year-round treat.