Prepare all ingredients as listed.

Melt butter gently in a pan over low heat or in the microwave.

Make the crêpe batter: In a large mixing bowl, whisk flour and egg. Gradually add milk and water, stirring until smooth. Add salt and melted butter and whisk until fully combined.

Heat a nonstick skillet over medium-high heat and lightly grease with nonstick spray.

Pour about ¼ cup batter into the skillet, tilting the pan to spread evenly. Cook for about 2 minutes until lightly golden, flip, and cook the second side briefly. Repeat with remaining batter.

Assemble crêpes: Spread Nutella inside each crêpe, add banana slices, then fold or roll as desired.

Brew and prepare coffee to your liking with creamer and sweetener.

Serve banana Nutella crêpes with fresh fruit and coffee.