Slice croissants or prepare mini tart shells as the base.
Lightly toast bases if you prefer extra crisp texture.
Spread softened cream cheese evenly over each base.
Spoon a small layer of blueberry jam on top.
Add diced strawberries to create the red layer.
Pat the diced strawberries and blueberries dry before layering to prevent the bases from becoming soggy.
Place whole blueberries over the top.
Melt white chocolate gently using short microwave intervals or a double boiler until smooth.
Drizzle melted chocolate lightly across each bite.
Arrange bites neatly on a serving platter.
Serve immediately after assembling or chill briefly only if using tart shells for better structure.