Goose lard from your trail food

You kneel down next to the saddlebags and forage for the small jar of goose lard. You dip your fingertip into the greasy mass, as you notice Garrett's questioningly gaze from the corner of your eye.

"Don't watch me! I have to do some girls stuff!", you order, hiding the lard from him.

"S-s-sorry, My... L-l-leyla," he replies, immediately averting his eyes.

How much would be enough? you ask yourself, looking at small amount of fat at the tip of your index finger.