4 eggs
1 (4 oz.) bar sweet cooking chocolate, melted and cooled
1/2 c. Bisquick baking mix
1/2 c. packed brown sugar
1/2 c. granulated sugar
1/4 c. butter, softened
3/4 c. chopped nuts

Heat oven to 350 degrees. Grease pie plate, 9 x 1 1/4 inches. Beat all ingredients, except nuts, until smooth, 2 minutes in blender on high, stopping blender occasionally to stir or 2 minutes with hand beater. Pour into plate; sprinkle with nuts. Bake until knife inserted in center comes out clean, 30 to 35 minutes. Cool 5 minutes. Serve with ice cream, if desired.

High Altitude (3500 to 6500 feet) : Omit granulated sugar.