Wash and thoroughly dry a 1-quart wide-mouth canning jar.
Layer the ingredients in the jar as listed above starting with the baking soda, baking powder, sugar and then flour - make sure to press firmly with a flat bottomed object after each addition; make the layers as level as possible.
Secure the lid and decorate as desired; attach the instructions for making these cookies found below.
BLUEBERRY BANANA MUFFINS GIFT TAG:
Additional ingredients to be added by the recipient: 3/4 cup milk, 3/4 cup butter, melted, 2 eggs, 1 tsp vanilla extract, 2 cups fresh blueberries and 1 large ripe banana, mashed.
BLUEBERRY BANANA MUFFIN INSTRUCTIONS:
Preheat oven to 375.
In a large bowl, combine the milk, butter, eggs and extract.
Add the contents of the jar, and stir just until mixed; do not overstir.
Gently fold in blueberries and banana.
Spoon the batter into greased or papered muffin tins, filling each cup two-thirds full.
Bake for 20 minutes, or until a toothpick inserted in the center comes out clean.
Cool for 10 minutes in the tin, then transfer to a wire rack and cool completely.
Serve immediately or store in an airtight container for up to 1 week.