Butterscotch Bars Mix in a Jar

Layer the following in a 1-quart jar:

2 cups sifted all-purpose flour
2 teaspoons baking powder
1/2 teaspoon salt
1/2 cup chopped nuts
2 cups brown sugar, packed (put this into a separate
    zip-top bag and put on top in the jar)

Attach the following recipe on a gift tag:

Butterscotch Bars:

Melt 1/2 cup butter in small saucepan; stir in contents of brown sugar baggie and let cool.

Blend in 2 eggs and 2 teaspoons vanilla extract. Stir in remaining ingredients from the jar and mix well. Spread into a 13 x 9-inch pan. Bake at 325 degrees F for about 30 minutes. The bars will firm up as they cool. While still slightly warm, cut into bars about 2 x 1/2 inches. Remove from pan and roll in confectioners sugar if desired.