Blend the maple syrup, molasses, and oil until smooth. Add the ginger and mix.
In a large bowl, whisk the flour, baking powder, baking soda, and salt. Add the maple syrup mixture and combine using as few strokes as possible.
Drop level tablespoonfuls of the dough 1 inch apart on the prepared baking sheets. Bake until the edges of the cookies are firm, 12 to 15 minutes. Do not overbake.
Let the cookies cool 2 minutes on the baking sheets, then transfer to a wire rack to cool completely.