Layer all ingredients in order listed in a one-quart, wide-mouth jar, being sure to pack down after each addition. Secure lid and attach baking instructions and a gift tag.
Instructions: Empty brownie mix into a large bowl. Add 3 eggs, 1/2 cup oil and one teaspoon vanilla extract. Pour into a greased 9"x9" pan. Bake at 350 degrees for 22 to 25 minutes. Cut into squares. Serves 6 to 8.