From Shauna James Ahern.
1/4 cup sour cream
1/4 cup lemon olive oil
1 egg
zest of one lemon
juice of one lemon
1/2 cup white rice flour
1/4 cup tapioca flour
1/2 cup fresh ground almond meal
1/2 cup sugar
1 teaspoon baking powder
Preheat 350F. First, combine the sour cream and olive oil well. Stir in egg, then the lemon juice and zest, to make a coherent mixture.
Next, combine all dry ingredients together. Slowly, fold the wet ingredients into the dry. The dough will be sticky. In fact, you might have dough all over your fingers by the time this process is done. Oh darn.
Form small balls with the sticky dough and roll each ball into sugar. This will make the finished cookies crunchy and shimmery. Place on a baking sheet covered with a silpat, or a layer of parchment paper. Cook for 12 minutes, approximately. The cookies will be soft at this point, but they will feel fully formed. Let them sit on the baking sheet, on the top of the oven, for about five minutes.
Carefully, move the cookies to a cooling rack. Let them sit there for another 5 minutes, during which time they will harden in the air.
Now, try not to eat them all in one sitting.
Makes 9 large cookies or 12 rather small ones.