Preheat oven to 350.
Wash berries and place in an 8 x 8 baking dish.
pour lemon juice over berries and mix.
In a small bowl, combine flour, sugar, and egg. Mix until a crumbly corn-meal like texture is achieved. Spread over berries.
Top with melted margarine.
Bake until crust is golden-brown – approximately 45 minutes.