These cookies are delicious, thanks for the recipe and the wonderful cake flour blend. Having said that, may I suggest a little tidying up of the text itself? First of all, mixing ounces and grams is unnecessarily confusing, so make it 120g butter and 30g oil. Secondly, the instructions do not mention the oil, which I assume gets creamed with the butter and sugars. Thirdly, the ingredients are out of order to the recipe instructions, which is annoying. The list should be ordered as follows: flour, vanilla powder, salt, orange zest, butter, oil, sugar, powdered sugar, egg yolks and water.

Love the recipe, I agree with Barbara this recipe should have both grams and oz not go back and forth between the two. And that is the ONLY thing wrong with the recipe. It's a lovely cookie and I have one person who asks me to make it for her all the time. This recipe truly comes out in the texture and taste I remember shortbread cookies to be when I wasn't GF. I use the optional lemon zest ingredient and mix that in when I'm creaming butter and sugar since I find that imparts great flavor. If you like shortbread cookies, this is the one to try. I