(Sorry for the mixed measurements - I had a bunch of egg white so had to weigh out 1 egg worth)

35 grams egg white

1 Tbsp guava jelly or guava paste

1 oz good mezcal

1/2 oz over proof reposado tequila

1/2 oz Aperol

3/4 oz lemon juice

ETA I failed to list one step. First: whisk or muddle the jelly and booze to incorporate it.

Shake without ice, then with ice. Just as good as it sounds and so beautiful.