Question: How to bake blueberry tarts at home.
Option 0: Place 1/4 cup blueberries, 1 tablespoon lemon juice, 1/4 cup sugar in unbaked tart shell, bake for 18 min.  in 375 degree oven, check  and remove when shell brown.
Option 1: Place 1/4 cup blue radishes, 1 tablespoon lemon juice, 1/4 cup sugar in unbaked tart shell, bake for 18 min.  in 375 degree oven, check  and remove when shell brown.
Answer: 0