Sand art brownies

Ingredients:

5/8 cup of all purpose flour
3/4 tsp salt
1/3 cup cocoa
1/2 cup flour
2/3 cup brown sugar
2/3 cup white sugar
1/2 cup chocolate chips
1/2 cup vanilla chips
1/2 cup walnuts

Directions:

Mix the first flour and salt together and put into the bottom of a quart jar. Layer the rest
of the ingredients in the order they are given.
Attach a tag with the following directions to the jar:
1) Preheat oven to 350 F. Grease a 9×9 pan.
2) Pour contents of jar in a large bowl and mix well.
3) Stir in 1 tsp vanilla, 2/3 cup of oil, and 3 eggs. Beat until just combined.
4) Pour batter into pan and bake for 25-30 minutes.