Mix the 5/8 cup of flour with salt. In a clean wide mouth quart jar, layer the ingredients in the order given (starting with the flour and salt mixture and ending with the walnuts).

Directions for gift recipe card to attach to the jar:

Preheat oven to 350 degrees F (175 degrees C). Grease one 9x9 inch square baking pan. Pour the contents of the jar into a large bowl and mix well. Stir in one teaspoon vanilla, 2/3 cup vegetable oil and 3 eggs. Beat until just combines. Pour the batter into the prepared pan and bake at 350 degrees F (175 degrees C) for 25 to 30 minutes.

Ingredients:

Recipe: Brownie Mix in a Jar