Lemon-Oat Sqares

I had an urge to bake. Something lemony from Whole Grain baking. These are a twist on traditional lemon bars, with oats on top and a creamy filling. They were good but not something I'd make again and again. These taste good when stored in the refrigerator. Not good at room temperature.

• Lemon-Oat Squares (King Arthur Flour Whole Grain Baking, p. 365)