Blender Mayonnaise

Olive or salad oil
1 egg
2 tablespoons cider
vinegar
1 teaspoon sugar
1 teaspoon dry mustard
¾ teaspoon salt
1/8 teaspoon white pepper

In covered blender container at low speed, blend ¼ cup oil and remaining ingredients for 1 to 2 seconds until thoroughly mixed.
Remove center of cover (or cover) and, at low speed, very slowly pour ¾ cup oil in steady stream into mixture; continue blending until well mixed.