Jam-Filled Snowball Cookies

Jam-Filled Snowball Cookies These are sweet and flaky with a delicious surprise in the middle!
Ingredients
1/2 cup unsalted butter
1/4 cup powdered sugar, plus extra for coating
1 and 1/8 cups all-purpose flour
Pinch of salt
1/2 teaspoon vanilla
1 tablespoon milk
1/2 cup chopped pecans
1/4 cup strawberry jam
Source Link: http://stepable.com/recipes/626/jam-filled-snowball-cookies