Key Lime Bars

• 1 (18 1/4 ounce) package vanilla cake mix
• 12 cup butter, melted
• 1 large egg yolk
• 4 large eggs
• 1 (14 ounce) can sweetened condensed milk
• 23 cup fresh squeezed lime juice
• 1 tablespoon grated lime rind

1. Preheat oven to 350; position oven rack in middle of oven; spray a 13 x 9 inch metal baking pan with cooking spray.
2. Reserve 1 tablespoon cake mix; set aside.
3. In a big bowl, add remaining cake mix, melted butter, and egg yolk; blend 1-2 minutes using an electric mixer on low speed until well blended and crumbly.
4. Press mixture into bottom of prepared pan; bake 15 minutes.
5. While crust bakes, in a big bowl, whisk the eggs, condensed milk, lime juice, and reserved cake mix until blended and smooth.
6. Stir in lime zest; carefully spread mixture over warm base layer.
7. Bake an additional 20-24 minutes or until topping is set and golden brown.
8. Transfer to a wire rack and cool completely.
9. Refrigerate until cold before serving, at least 2 hours; cut into bars.
10. *Creamy Lemon Barsprepare as directed but use lemon juice in place of lime juice and lemon zest in place of lime zest.
11. *Orange Burst Barsprepare as directed but use 1/2 cup orange juice plus 2 1/2 tablespoons lemon juice in place of lime juice and orange zest in place of lime zest.

vanilla cake, butter, egg yolk, eggs, condensed milk, fresh squeezed lime juice, lime rind

Taken from www.food.com/recipe/key-lime-bars-307361 (may not work)