Here is a recipe clipped from Bon Appetite, don't know when but fairly recently. Hope this is it!

Chocolate Chip Fudge Brownies

3/4 cup (1 1/2 sticks) unsalted butter
4 ounces unsweetened chocolate, chopped
4 large eggs
1 3/4 cups sugar
1 1/2 teaspoons vanilla extract
3/4 cup all purpose flour
1 cup semisweet chocolate chips

powdered sugar

Preheat oven to 350 degrees. Butter 13x9x2-inch metal baking pan. Stir butter and unsweetened chocolate in heavy medium saucepan over medium-low heat until melted and smooth. Remove from heat. Whisk eggs and 1 3/4 cups sugar in large bowl until pale yellow and light, about 3 minutes. Gradually whisk in warm chocolate mixture. Whisk in vanilla, then flour. Mix in chocolate chips. Pour batter into prepared pan.

Bake brownies until tester inserted into center comes out with moist crumbs attached, about 25 minutes. Cool brownies completely in pan on rack. Cut into squares. (Can be prepared 1 day ahead. Store in airtight container at room temperature.) Sift powdered sugar over.