Lemon-Lime Bars

My oldest daughter has been menu planning and grocery shopping with me, now that school's out for the Summer, so this was one of her picks for the week. I love lemon bars, so these were a fun little twist on the classic. The colors didn't swirl together like I'd imagined and the bars ended up with yellow on top and green on the bottom, but the flavors of lemon AND lime were certainly there. Tastes like Summer to me! Recipe from Sweet Tooth...

CRUST:

1/2 cup butter, softened

1/4 cup powdered sugar

1 cup all-purpose flour

1/8 tsp. salt

LIME FILLING:

Zest of 1 lime

1/2 cup sugar

1 1/2 Tbs. lime juice

1 1/2 Tbs. flour

1/4 tsp. baking powder

1 egg

Green food coloring (optional)

LEMON FILLING:

Zest of 1 lemon

1/2 cup sugar

1 1/2 Tbs. lemon juice

1 1/2 Tbs. flour

1/4 tsp. baking powder

1 egg

1. Preheat oven to 350 degrees F. Spray an 8 x 8" glass pan with cooking spray. 
2. Place crust ingredients in a small bowl and blend on low until well combined. Press the dough into the prepared pan and bake for 10 minutes.
3. Meanwhile, prepare the fillings in 2 separate bowls. Add green food coloring to the lime filling, if desired. (I was surprised how similar in color they were without food coloring, so I added 3 drops of green to the lime)
4. Remove the crust from the oven and pour one filling at a time into the pan in a zig-zag pattern. Use a knife to carefully swirl the colors, if needed.
5. Bake for 16-20 minutes, or until the filling is slightly golden brown.
6. Cool completely, then cut into squares. Dust with powdered sugar, if desired. Serves 12.