There are some amazing strawberries to be had at the farmers market, especially from Suzie's Farm and JR Organics Farm.
I first had strawberry horchata with a friend at El Mercado in East LA. She swore it would be awesome and ordered me a licuado de medio horchata y medio agua fresca de fresa. And I was hooked. I would then order it wherever I happened upon a licuado shop or fruteria. But I would always get funny looks - this was apparently a strange request. So I started making it at home. And it was very popular when I sold it as Roots.
3&1/2 cups brown rice
1 tablespoon ground cinnamon
about 12 cups hot water (or milk or a mix of the 2), not boiling
1 cup agave
1 tablespoon vanilla extract
2-3 pints strawberries
Put the rice and cinnamon in a gallon pitcher and fill the pitcher with the hot water. Allow it to cool, cover and refrigerate overnight. Blend the mixture for several minutes until the rice is a gritty, oatmeal texture. Stain through a fine sieve, pressing on the solids to remove the liquid. Return the liquid to the pitcher and compost the rice solids.
Remove the green top from the strawberries. Add the agave, vanilla, and enough strawberries to mostly fill up the pitcher. Blend with an immersion blender until smooth.
Makes about a gallon.