1Muddle lemon juice and basil, then add marmalade, agave nectar, and vodka. Add ice, shake, and fine-strain into a chilled collins glass. Garnish with lemon basil leaf at the bottom of the glass and add ice, arranging orange zest vertically and lemon slice horizontally in the glass for garnish. Double-strain contents of the shaker into a collins glass. Then add lemon basil branch for garnish.