Mix together the cinnamon and sugar on a small plate.
Rim your 2 serving glasses with a lime wedge and roll into the cinnamon sugar mixture. Fill the glasses to the top with ice.
Add the lime juice, pear juice, tequila, orange liqueur, egg white, and vanilla bean paste to a large cocktail shaker. Place the lid on and dry shake vigorously for about 10 seconds.
Take the lid off and fill with ice, place the lid back on and shake again for another 5-10 seconds.
Strain and pour over ice into the serving glasses. Garnish with a pear slice if desired and enjoy!