Preheat oven to 350°F.
Line a baking sheet with parchment paper.
In a bowl, combine sugar and oil.
Beat in egg. Stir in molasses.
In another bowl, combine the flour, baking soda, ginger, cinnamon and salt.
Gradually add dry ingredients to the creamed mix and mix well.
Shape into ¾ in. balls and roll in sugar.
Place 2 in. apart on prepared baking sheets.
Bake until cookies spring back when touched lightly (about 10-12 minutes).
Remove to wire racks to cool.
While the cookies cool, melt the white chocolate chips.
Dip cookies halfway into the melted chips or drizzle over cookies. Place on waxed paper and let stand until chocolate hardens.