Down South Peanut Butter & Onion Sandwich

[Chowhound]

2 slices bread, white or wheat
1 heaping tablespoon peanut butter
2 tsp mayonnaise
1 slice onion, more if you like

Toast two slices of bread (toast it or not, your choice), spread both slices with peanut butter, spread mayonnaise over the peanut butter. Put onion slice(s) on mayonnaise. Cut sandwich on an angle and enjoy!