Haas avocados are ripe when they turn almost black and give a little when gently squeezed.
How to Make It
Step 1
Cook pistachios in butter in a medium skillet, stirring constantly, until lightly browned. Remove from pan, and cool.
Step 2
Mash avocado in a medium bowl. Stir in lemon juice. Add toasted nuts, mayonnaise, and pepper.