Step 1

Butter the bread slices.

Step 2

Optional - Begin by toasting the buttered bread on a griddle or toaster. You can also skip toasting if you like to save sometime. If you are not serving right away toasting them is a good idea, since it prevents the sandwich from turning too soggy.

Step 3

Chop onions and mince garlic. Add them to a bowl.

Step 4

Squeeze in some lemon juice. Let rest for a while until the veggies are ready. This makes the onions & garlic less pungent.

Step 5

Prepare the veggies by chopping finely.

Step 6

Add mayo, red chili flakes, salt, pepper and mustard powder (optional).

Step 7

Mix up everything well and taste it. Add more spice if needed.

Step 8

Spread on the bread.

Step 9

Place another slice and slice to triangles or squares. Serve mayonnaise sandwich.