Instructions

Shortbread crust

1. Line a 8” x 4” loaf pan with parchment paper or aluminum foil. Lightly grease inside and set aside.
2. Whisk together flour, powdered sugar, and salt.
3. Add in oil and vanilla and stir until combined.
4. Press dough into bottom of prepared loaf pan.
5. Bake at 325°F for 15 minutes. Remove from oven and turn oven up to 350°F.

Filling

1. While crust is baking, add sugar, salt, and lemon zest to a bowl. Press together with fingers until fully incorporated and fragrant. 
2. Add egg. Whisk vigorously for 1-2 minutes until airy and lighter in color.
3. Whisk in lemon juice, then whisk in flour and baking soda until smooth. 

Lemon bars

1. When crust is done and the oven has preheated, pour filling on top of hot crust. 
2. Return pan to oven and bake for 15 minutes, until mixture is set in the middle and edges have a little color.
3. Remove pan from oven and allow bars to cool in pan on a baking rack, then move to fridge.