Chocolate Waffle cookies

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adapted from: http://www.marthastewart.com/316712/double-chocolate-chunk-cookies

Ingredients

    1 cup all-purpose flour
    1/2 cup unsweetened Dutch-process cocoa powder
    1/2 teaspoon baking soda
    1/2 teaspoon salt
    8 ounces good-quality milk chocolate, 4 ounces coarsely chopped, 4 ounces cut into 1/4-inch chunks
    1 stick (8 tablespoons) unsalted butter
    1 cups sugar
    2 large eggs
    1 teaspoon pure vanilla extract
    Thin with water to right consistency for waffle iron

Directions

    Whisk together flour, cocoa powder, baking soda, and salt in a medium bowl; set aside. Melt coarsely chopped chocolate with the butter in a small heatproof bowl set over a pan of simmering water.the

    Transfer chocolate mixture to a bowl. Add sugar, eggs, and vanilla; mix on medium speed until combined . mix in flour mixture. Fold in chocolate chips.