Fudge-Filled Brownie Bars

• all-purpose flour↗1 1⁄2 cups
• packed brown sugar3⁄4 cup
• butter↗3⁄4 cup

  softened

• egg yolk↗1
• vanilla extract↗3⁄4 teaspoon
• Filling
• fudge brownie mix1 package

  18 ounce, 13 inch x 9 inch pan size

• egg↗1
• water↗1⁄3 cup
• vegetable oil↗1⁄3 cup
• chopped walnuts

  toasted

Step-by-step instructions

1. 1

   In large bowl, combine the first five ingredients.

2. 2

   Press onto the bottom of a 15 inch x 10 inch x 1 inch baking pan.

3. 3

   Bake at 350 for 15-18 minutes or until golden brown.

4. 4

   Meanwhile in a large bowl, combine the filling ingredients.

5. 5

   Spread over hot crust.

6. 6

   Bake for 15 minutes or until set.

7. 7

   Cool on wire rack for 30 minutes.

8. 8

   Spread melted chocolate over filling.

9. 9

   Sprinkle with walnuts.

10. 10

    Cool completely.

11. 11

    Cut into bars.