- Add 1 tablespoon instant coffee granules to a small bowl. Add 1/2 cup boiling water to it and mix well. Let it cool down to room temperature. To make cold coffee shake add the prepared coffee to a blender jar. Add a pinch of salt, 1 tablespoon cocoa powder, 1 teaspoon vanilla and 3 tablespoons sugar too. Blend thoroughly. Now add few ice cubes. Next add 1/2 cup chilled milk and 3 scoops ice cream. Blend well in high speed until frothy and creamy. Serve in glass and sprinkle some cocoa powder on top and serve.