Mix the crushed Blueberry Chex Cereal with melted butter, then fold in chopped white chocolate.
Press into muffin liners
Mix cream cheese, butter, powdered sugar, vanilla, and lemon juice with a hand mixer until blended nicely.
Dollop into cereal base to muffin liners
Top with lemon zest and 3 blueberries (or more!)
Chill until firm