Preheat oven to 325 degrees. In a medium bowl, add 1/4 cup melted and cooled coconut oil, 1/4 cup coconut sugar, 1 egg, and almond extract. Mix together until smooth.
Add in 1 cup packed almond flour, 3 tablespoons coconut flour, and salt. Mix until a dough forms.
Press dough into the bottom of a greased 8"x8" baking pan, lined with parchment paper. Bake for 15 minutes, then remove from oven to cool.
Filling
In a medium bowl, whisk together lemon zest, lemon juice, honey, 4 eggs, egg yolk, and 1 tablespoon coconut flour. Whisk until blended thoroughly.
Pour filling over shortbread crust and bake at 325 degrees for 20 to 25 minutes, or until filling is no longer jiggly.
Cool lemon bars completely before removing from pan and slicing into bars.
Notes
Helpful Tip: Lemon bars should be stored in the refrigerator.