01 - Immerse pistachios in water overnight or for a minimum of 6 hours. After soaking, drain and rinse thoroughly.
02 - Combine soaked pistachios, filtered water, vanilla extract, maple syrup or honey, and sea salt in a blender. Process on high until completely smooth.
03 - Transfer blended mixture into a nut milk bag or fine mesh sieve set over a pitcher. Squeeze or press to extract milk; discard solids or reserve them for baking.
04 - Pour pistachio milk into a saucepan and gently heat while whisking, until hot but not boiling. Adjust sweetness if desired.
05 - Brew two shots of espresso or a strong coffee using preferred equipment.
06 - Divide hot pistachio milk between serving cups, reserving some froth. Add one shot of espresso to each cup and gently mix to combine.
07 - Top each latte with reserved pistachio milk froth. Add a sprinkle of crushed pistachios if desired and serve immediately.