Daughter L made these flourless peanut butter cookies and they disappeared very quickly. She said it uses just 3 ingredients: one egg, 2/3 cup of sugar (or equivalent sugar substitute), one cup of peanut butter (she used natural peanut butter). Mix the ingredients together, shape into cookies and bake for 5 minutes at 350F. They are very crumbly, like shortbread.
I realized I had blogged about similar cookies 2 years ago. This time I think she found the recipe on Pinterest and modified it a bit.

