Walnut Raspberry Thumbprints

In a bowl, beat butter with a mixer on medium to high speed for 30 seconds. Add both sugars, baking powder, cinnamon, and baking soda. Beat until combined, scraping bowl occasionally. Beat in the 2 egg whites and the vanilla until combined. Beat in the flours. Stir in the oats. Cover and chill dough about 2 hours or until easy to handle.

Preheat oven to 375 degrees F. Lightly grease two large cookie sheets or line with parchment paper. Shape dough into 3/4-inch balls. Roll balls in the lightly beaten egg white; roll in nuts to coat. Place 2 inches apart on prepared cookie sheets. Using your thumb, make an indentation in the center of each cookie.

Bake 7 to 8 minutes or until edges are golden brown. If indentations puff during baking, gently press the back of a measuring teaspoon into indentations. Cool on cookie sheet for 1 minute. Remove; cool on wire racks. Just before serving, spoon preserves into indentations in cookies.