Potato and egg salad

Ingredients

• 2 potatoes, peeled, boiled and chopped
• 1 egg, boiled and chopped
• 1/2 carrot, boiled and thinly sliced
• 1/2 cucumber, thinly sliced
• 1/2 white onion, sliced
• 1/2 cup mayonnaise
• 1 tsp mustard
• salt
• pepper
• a bit sugar