In a large bowl, combine powdered sugar, salt, and butter; mix well.

Add vanilla.

Gradually stir in flours, pectin, and psyllium, then almond meal.

Cover and chill until firm.

Preheat oven to 400 degrees.

Form dough into balls the size of walnuts and place 1 inch apart on ungreased baking sheets.

Bake 8-10 minutes, or until set but not brown.

Roll immediately in powdered sugar.

Let cool on wire racks, then roll in powdered sugar again.