Spiked Horchata

Make some delicious spiked horchata for your Cinco de Mayo party with this SheKnows drink how-to!
Ingredients:
4 cups whole milk
1 cinnamon stick
1 can (14 ounces) sweetened condensed milk
1/2 cup rice or almond flour (bobsredmill.com)
2 teaspoons pure vanilla extract
1/2 cup dark or light rum (optional)
Ice cubes
Ground cinnamon and cinnamon sticks for garnish
Directions:
1. Bring whole milk and cinnamon stick to a simmer in a medium saucepan over medium heat
2. Remove from heat, and transfer to a bowl
3. Whisk in condensed milk, flour, and vanilla
4. Refrigerate for at least 30 minutes
5. Strain mixture through a fine sieve, and stir in rum
6. Divide among 4 ice-filled glasses
7. Garnish with ground cinnamon and cinnamon sticks