Cream together white sugar, brown sugar and copha until fluffy. Stir in the vanilla and eggs. Combine the flour, wheatgerm, salt and bicarb soda; mix into the batter. Stir in rice bubbles and chocolate chips. Drop by teaspoonfuls on an ungreased baking tray, spacing biscuits 5cm apart.
Bake for 11 to 13 minutes in the preheated oven until biscuits are light brown at the edges.