Lemon is probably my favorite flavor and it's definitely a popular flavor right now, with Spring coming.
These bars were very easy and I hope you give them a try!
2 sticks butter, room temperature
1/2 cup sugar
2 cups flour
1 tsp. xanthan gum
1/8 tsp. salt
3 cups sugar
2 tblsp. grated lemon peel or lemon zest
1 cup lemon juice
1/2 cup cornstarch
Confectioners' sugar for dusting
For the crust: In a large mixing bowl, cream together the butter and sugar. Add flour, xanthan gum and salt and mix until well combined. Press evenly into a greased, 9x13 baking dish - you will probably want to flour your hands, as the dough is pretty sticky. Chill for 15 minutes. Bake at 350 degrees for 15-20 minutes or just until barely golden brown. Set aside to cool.
For the filling: In a large bowl, whisk together 5 eggs, sugar, lemon peel and lemon juice. In a separate bowl, combine remaining one egg and cornstarch. Mix until there is no lumps. Add to egg and sugar mixture and mix well. Pour onto crust. Bake at 350 degrees for 30-35 minutes or until filling is set - it should be like a very thick pudding consistency and spring back whenever you gently touch it. Cool to room temperature. Cut into squares and dust lightly with confectioners' sugar. Serve!
Store in an airtight container with wax paper in between each layer.