Step 1

In a large bowl, cream butter and brown sugar until light and fluffy. Beat in egg yolk and vanilla. Combine flour and salt; gradually add to creamed mixture and mix well.

Step 2

Shape dough into 1-in. balls; roll in egg white, then in pecans. Using the end of a wooden spoon handle, make an indentation in the center of each ball. Cover and freeze until firm. Transfer cookie dough balls to a large resealable plastic freezer bag. May be frozen for up to 3 months.

Step 3

To use frozen cookie dough: Place dough balls 2 in. apart on baking sheets coated with cooking spray. Bake at 350° for 17-20 minutes or until set. Remove to wire racks. While warm, fill each with a teaspoonful of preserves. Cool completely.