Pear Mojitos (Mrs. Cox's Cocktail)

This is the closest I can get for now! I adapted from a mojito recipe that I like, and added the pear liqueur I think would work. You may have to experiment a bit. I know this breaks your heart.

3 fresh mint sprigs
2 tsp sugar
3 tbsp fresh lime juice
1 oz light rum
1/2 oz pear liqueur, like Marie Brizard
club soda

In a tall thin glass, crush part of the mint with a fork to coat the inside. Add the sugar and lime juice and stir thoroughly. Top with ice. Add rum and liqueur and mix. Top off with chilled club soda. Add a lime slice and the remaining mint, and serve. Hell, make a pitcher of 'em.