Cookie Dough Brownies

Ingredients:
4 eggs
1 cup canola oil
2 cups sugar
2 teaspoons vanilla extract
1-1/2 cups flour
1/2 cup baking cocoa
1/2 teaspoon salt
1/2 cup chopped walnuts, optional
FILLING:
1/2 cup butter, softened
1/2 cup packed brown sugar
1/4 cup sugar
2 tablespoons milk
1 teaspoon vanilla extract
1 cup all-purpose flour
GLAZE:
1 cup (6 ounces) semisweet chocolate chips
1 tablespoon shortening
3/4 cup chopped walnuts
Directions:
In a large bowl, beat the eggs, oil and sugar. Stir in vanilla. Combine flour, cocoa and salt; gradually add to egg mixture. Stir in walnuts if desired.
Pour into a greased 13-in. x 9-in. baking pan. Bake at 350° for 30 minutes or until brownies test done. Cool completely.
For filling, in a large bowl, cream butter and sugars until light and fluffy. Beat in milk and vanilla. Gradually beat in flour. Spread over the brownies; chill until firm.
For glaze, in a microwave, melt chocolate chips and shortening; stir until smooth. Spread over filling. Immediately sprinkle with nuts, pressing down slightly. Yield: 3 dozen.