In a large bowl, combine melted butter and brown sugar and whisk to combine. Add egg, one cup of the pear puree, and molasses and whisk again until smooth. In a second bowl, combine the flour, spices, baking powder, and salt, and stir to mix. Add the dry ingredients to the wet and  stir until the mixture comes together to form a soft dough. Refrigerate the dough until firm, at least one hour.

When you are ready to bake the cookies, preheat the oven to 375 degrees. Prepare a small bowl of granulated sugar for rolling the cookies. Roll the chilled dough into 1 ½ inch balls and roll in the granulated sugar, placing the cookies onto greased baking sheets as you go. Lastly, flatten the cookies slightly with the bottom of a drinking glass that has been dipped in the remaining sugar to prevent sticking. Bake the cookies for 11-13 minutes, rotating once during cooking. Allow to cool before removing from pans.