Lemon Bars

For part of our family's Easter feast last night, I made these simple and tasty lemon bars and some carrot cake cupcakes, which I'll post later. These were easy and pretty quick, thanks to a cake mix.

1 pkg. lemon cake mix (or you could use yellow cake mix, but it won't be as lemon-y)
3 eggs, divided
1/2 cup butter flavored shortening
1/2 cup granulated sugar
1/4 cup lemon juice (about 1 large lemon)
2 tsp. lemon zest (about 1 large lemon's zest)
1/2 tsp. baking powder
1/4 tsp. salt
powdered sugar, for garnish

1. Preheat oven to 350. Lightly grease a 13x9 baking pan.
2. Combine cake mix, 1 egg, and shortening in a large mixing bowl. Beat at low speed with mixer until coarse crumbs form. Reserve 1 cup. Pat remaining mixture into baking pan. Bake at 350 for 15 minutes until lightly browned.
3. Combine remaining 2 eggs, sugar, lemon juice, lemon zest, baking powder, and salt in another mixing bowl. Beat at medium speed until light and foamy. Pour over hot crust, then sprinkle reserved crumbs over the top.
4. Bake at 350 for 15 minutes until lightly browned.
5. Cool completely, the sprinkle with powdered sugar before serving.