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1
Place an oven rack in the center of the oven.
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2
Preheat the oven to 300 degrees F. Line 2 baking sheets with parchment paper or silicone mats.
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3
Set aside.
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4
In a small bowl, combine the bittersweet chocolate and butter.
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5
Place the bowl over a pan of barely simmering water and stir occasionally until the chocolate has melted and the mixture is smooth.
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6
In a medium bowl, whisk together the flour, cocoa powder, baking powder and salt.
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7
In another medium bowl, whisk together the sugar, eggs, 2 tablespoons water and vanilla extract.
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8
Gradually add the dry ingredients and stir until thick and smooth.
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9
Fold in the melted chocolate.
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10
Stir in the chocolate chips.
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11
Using a cookie or ice cream scoop, scoop level 1/4 cupfuls of the batter onto the prepared baking sheets.
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12
Bake until slightly puffed and the tops begin to crack, 18 to 20 minutes.
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13
Allow the cookies to cool completely on the baking sheets and serve.
