1. Cut the bagel into 3 equal slices in thickness.

2. Toast the bagel and let it cool to room temperature.

3. In a blender, soften the cream cheese by adding lemon juice, and mix until smooth.

4. Transfer to a bowl; add salt, pepper, and lemon zest. Mix.

5. Spread each bagel slice with the cheese mixture.

6. Spread the middle slice on both sides so that everything holds together well.

7. Place the slices of smoked salmon, 2 per level.

8. When the bagel is reassembled, hold it together with the help of sticks for the 6 portions.

9. Refrigerate for 10 minutes before cutting so that the bagel does not crush.

10. Cut into six parts with a bread knife and serve as an appetizer.