1. Add the mashed banana, water, brown sugar, cinnamon and salt to a saucepan and bring it to a boil. Lower to a medium to low heat and simmer for ten minutes, stirring continuously. 
2. Take it off the heat and strain it to get rid of any lumps. Add to an airtight container and store in the fridge for 2 weeks. 
3. Add a handful of ice to a glass, pour in the oat drink, syrup and espresso and top with a little bit of cinnamon. 

Make sure you save this recipe and give it a try! It’s the perfect way to cool down in the summer heat.