Cooking Instructions
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Step 1
Preheat oven to 350 degrees F (180 degrees C).
Step 2
In a large mixing bowl, beat
Butter (1 cup)
,
Caster Sugar (1 cup)
, and
Vanilla Extract (1 tsp)
medium speed of an electric mixer until well combined. Beat in Egg Yolk and
All-Purpose Flour (2 cups)
. Stir in
Walnuts (1 cup)
.
Step 3
Spread into a 10-inch by 15-inch Pyrex by 2-inch baking dish that has been sprayed with
Nonstick Cooking Spray (as needed)
.
Step 4
Now, beat the white of the
Egg (1)
until frothy. Spread beaten egg white over mixture in baking dish. Sprinkle the remaining Walnuts (1/2 cup) [Chopped] over the top.
Step 5
Bake for about 20 to 25 minutes, or until set and lightly browned. A toothpick inserted into the center should come out clean.
Step 6
Immediately sprinkle with
Semi-Sweet Chocolate Chips (1/2 cup)
and
Peanut Butter Chips (1/2 cup)
. Let stand 5 minutes.
Step 7
Spread melted chips to form marbled frosting. Cool completely and cut into bars. Enjoy!
