Cake Mix Lemon Squares

Directions

• Step 1
  Preheat oven to 350ºF.
• Step 2
  Line a 9" × 13" Pyrex pan with aluminum foil. Leave enough foil sticking up from the pan to allow you to use it to lift out the baked bars. Grease the foil.
• Step 3
  Set aside 1 cup cake mix; reserve for later use.
• Step 4
  In a large mixing bowl, beat the remaining cake mix, 1 egg, and ¼ cup melted butter with an electric mixer on low speed to form a smooth batter.
• Step 5
  Pat this mixture into the bottom of the pan.
• Step 6
  In a separate bowl, mix remaining 3 eggs, remaining ½ cup melted butter, buttermilk, lemon juice, granulated sugar, and lemon zest. Beat for 2 minutes with an electric mixer on medium speed.
• Step 7
  Add lemon mixture over batter layer in pan. Bake for 35 minutes or until set and golden.
• Step 8
  Use oven mitts to lift cookies out of pan by the aluminum foil edges. Remove to wire rack to cool completely. Sprinkle with confectioners’ sugar.