Brown Sugar Shaken Oatmilk Espresso

Name: Brown Sugar Shaken Oatmilk Espresso
Ingredients: 1 ½ tbsp brown sugar; 2 tbsp. water; ½ tsp vanilla extract; ¼ tsp cinnamon; ½ - 1 cup oat milk (can replace with almond milk if you don't like oat); 3 oz. of cold brew or 2 shots of espresso