Easy Baking 1

Double-Chocolate Brownies
Ingredients
1 stick (1/2 cup or 115grams) unsalted butter, cut into large pieces
6 ounces bittersweet chocolate, chopped
1 1/2 cups sugar
3 large eggs
1/4 cup unsweetened cocoa powder
1/2 teaspoon salt
1/2 cup plus 2 tablespoons all-purpose flour, sifted

Directions
Preheat oven to 350 degrees. Line an 8-inch square baking pan with parchment, leaving a slight overhang on all sides.

Melt butter and chocolate in a double boiler or a heatproof bowl set over a pot of simmering water, stirring until smooth. Remove from heat, and whisk in sugar. Whisk in eggs, 1 at a time, until combined. Whisk in cocoa and salt. Fold in flour until combined.

Pour batter into pan. Bake until set and a toothpick inserted into the center comes out with moist crumbs, 35 to 40 minutes. Let cool slightly in pan, about 15 minutes. Lift brownies from pan using parchment. Remove parchment, and transfer to a wire rack. Let cool completely. Cut into 9 squares.

Cook's Note
To add crunch to the brownies, stir 1/2 cup of walnuts or pecans into the batter.

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Chocolate-Chip Brownies
Ingredients
8 tablespoons (1 stick/ 115gm or 1/2 cup) unsalted butter, cut into pieces, plus more for pan
1 cup all-purpose flour, spooned and leveled
1/4 cup unsweetened cocoa powder
1/2 teaspoon baking powder
1/2 teaspoon salt
1 cup semisweet chocolate chips
1 cup semisweet or bittersweet chocolate, chopped
1 1/4 cups sugar
3 large eggs

Directions
1. Preheat oven to 350 degrees. Brush a 9-inch square baking pan with butter. Line bottom and two sides with a strip of parchment paper, leaving a 2-inch overhang on the two sides. Butter paper, and set pan aside. In a small bowl, whisk flour, cocoa, baking powder, and salt; set aside.

2. Place butter and chocolate in a large heat-proof bowl set over (not in) a saucepan of gently simmering water. Heat, stirring occasionally, until smooth, 2 to 3 minutes; remove bowl from pan. Add sugar; mix to combine. Add eggs, and mix to combine. Add flour mixture; mix just until moistened (do not overmix). Add chocolate chips. Transfer batter to prepared pan; smooth top.

3. Bake until a toothpick inserted in center comes out with a few moist crumbs attached, 50 to 60 minutes. Cool in pan for 30 minutes. Using paper overhang, lift brownies out of pan; transfer to a rack to cool completely (still on paper). On a cutting board, using a dampened serrated knife, cut into 16 squares. Store in an airtight container at room temperature, up to 2 days.

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Source:
http://www.marthastewart.com/search/apachesolr_search/chocolate%20brownies%20recipe