Soak the rice with cinnamon

• Rinse the rice thoroughly and place it in a bowl.
• Add the water and the cinnamon stick.
• Cover and refrigerate overnight.

Blend with pumpkin

• Pour the soaked rice, cinnamon and water into a blender.
• Add the pumpkin puree and pumpkin pie spice.
• Blend until completely smooth.

Strain the mixture

• Set a fine-mesh strainer over a large container.
• Pour the blended mixture through and work it through with a spatula until only the solids remain.

Sweeten and finish

• Add the sweetened condensed milk, evaporated milk and milk to the strained liquid.
• Stir in the brown sugar and vanilla.
• Mix well, then serve chilled over ice.