Blueberry Cream Cheese Shortbread
["2 blocks butter", "4 Tbsp. powdered sugar", "2 c. flour", "1/2 c. chopped walnuts"]
["Combine ingredients together.", "Press into 9 x 13-inch pan. Chill for 1/2 hour.", "Bake at 350\u00b0 for 15 to 20 minutes or until lightly brown."]
["butter", "powdered sugar", "flour", "walnuts"]