Instructions: * Note: Bourbon may be substituted for vanilla extract.

Microwave butter and bittersweet chocolate in a 2-quart glass bowl at HIGH 1 1/2 minutes or until chocolate is melted, stirring mixture twice. Whisk in 2 cups sugar, eggs, and vanilla extract.

Toss together 1 tablespoon flour, walnuts, and chocolate morsels. Stir remaining flour and salt into sugar mixture. Add walnut mixture. Spread batter into a lightly greased 13- by 9-inch pan.

Bake at 350 degrees for 30 to 40 minutes. (A wooden pick inserted in center will not come out clean.) Cool on a wire rack.

This recipe yields 2 dozen.

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