Combine the coconut milk, Meyer lemon, honey, coconut butter, turmeric, ginger, salt, pepper and vanilla into a high powered blender. Blend until completely smooth.Transfer to a saucepan and bring to a simmer, whisking to combine the ingredients.Reduce the heat to low and simmer for 10 minutes, stirring occasionally.You can serve the latte as is at this point, it will be thick or you can strain it before you serve for a thinner version. Sprinkle the top with cinnamon if desired.