Rinse the rice in a fine mesh strainer for 2 minutes or until the water runs clear, no white residue.
Add the rice, cinnamon stick, and cloves into a large pitcher.
Pour the 2 cups of water over the top into the the pitcher. Stir to combine.
Cover and place on the counter at room temperature to let this soak for at least 6 hours or overnight.
After soaking, remove large chunks of the cinnamon stick, leave any smaller pieces that have broken off.
Working in batches if needed, blend the rice (cinnamon and cloves) with the water.
Pour this mixture through a fine mesh sieve lined with cheese cloth (best results come with using a nut milk bag!). For smoother horchata do this step twice if needed.
Add the strained mixture into a clean large pitcher.
Clean the blender and blend 2 cups of strawberries with 1 cup of water. Blend until smooth.
Add the strawberry mixture to the pitcher with the strained rice milk.
Pour in 5 additional cups of cold, filtered water, the evaporated milk, and sweetened condensed milk. Stir to combine. Taste and adjust as needed by adding more sweetened condensed milk.
Add vanilla extract if desired. Stir to combine.
Serve over ice. Store in the refrigerator.