Mom's Guacamole Dip

2 avocados - pitted and peeled

1 T. grated onion

1T. lemon juice

1/2 tsp. salt

1/4 tsp. chili powder

1/3 c. mayonnaise

Mash avocados with fork.  Stir in mayonnaise, onion, lemon juice, salt, and chili powder.  Serve with tortilla chips.  Makes 1 1/2 cups.