Toss 1 tablespoon flour and 1/4 cup crystallized ginger to coat; set aside. In medium bowl, mix 1 1/3 cups flour, the baking powder and salt; set aside. In large bowl, beat 1 cup brown sugar and 6 tablespoons butter with electric mixer on medium speed, scraping bowl occasionally, until fluffy. Beat in eggs, one at a time, until smooth. Add vanilla. Gradually beat in flour mixture alternately with milk, beating after each addition until smooth. Stir in ginger-flour mixture. Spread batter over pears and ginger.