STEP 1/7
Place at room temperature, gently dissolve the soft butter, add the salt and sugar powder, and mix well
STEP 2/7
Add lemon zest and vanilla extract to this and mix well. It's enough to work with a spatula without a whisk. I used a frozen lemon zest to add a piece of zest, and if you use a fresh lemon, 1/2 ts would be fine.
STEP 3/7
Add the sifted flour and mix it a little bit..
STEP 4/7
Add oatmeal and mix well. When you mix it, mix it lightly so that you can't powder.
As for oatmeal, quick oatmeal is good for meals and pressed oatmeal is good. I used whole wheat, but you can use soft flour.
STEP 5/7
When the dough is done...
STEP 6/7
Scoop and pan it. After that, press lightly to make it flat
STEP 7/7
Bake in an oven preheated to 180 degrees for 12 to 15 minutes until the cookie is golden. When it's done, cool it down with a pan and transfer it to a cooling net to completely cool it down.