Mix the instant coffee with hot water and sugar until smooth. If you prefer a stronger coffee flavor, you can add an extra tablespoon of instant coffee. For a creamier texture, use a handheld coffee beater or electric mixer to whip the mixture for 2–3 minutes until it becomes light, frothy, and perfectly creamy.
In a separate glass, pour milk until the glass is half full. You can also use almond milk or oat milk for a delicious nutty flavor.
Fill the glass with ice and pour Nutella over it.
Pour the coffee mixture over the Nutella and ice. Stir gently with a straw, then sit back and enjoy a rich, creamy sip that will satisfy your taste buds.
If you want, you can sprinkle some cocoa powder or add whipped cream to give it a café-style look.