Fudge Chocolate Chip Ginger Cookies

Preheat oven to 350°F. Coat a baking sheet with cooking spray or line with parchment paper. Place bittersweet chocolate, unsweetened chocolate and butter in a double boiler (see Tip) over hot water. Heat, stirring frequently, until melted. Remove from heat and stir in sugar. Add eggs and vanilla and mix until combined. Mix in flour and baking powder until combined. Stir in chocolate chips and ginger. Drop dough by rounded teaspoonfuls 2 inches apart on the prepared baking sheet. Bake until the edges are firm and the tops of the cookies lose most of their shine and are set, 8 to 10 minutes. Transfer to a wire rack to cool. Repeat with remaining batter.