Wash hands with soap and water.

Boil the potatoes in 2 cups of water in a deep kettle. Cover and cook over moderate heat for about 20 minutes, until the potatoes are tender.

When thoroughly cool, dice potatoes and place in a big bowl.

Add diced beets and mix with the potatoes.

Set aside 1/4 cup of peas for garnishing and add the rest to the bowl.

Save 1 egg to use as a garnish. Chop the rest and add to the bowl.

Peel the skin off the apple and remove the core. Cut the apple into small pieces, place in a small bowl, and sprinkle with lemon juice. Add apple to the salad.

Add the vinegar, olive oil, and sugar.