homemade Mayonnaise

I always make our mayonnaise. Its just so expensive at the store. We were always running out. Its so simple and quick. Here's what you do.
In small mixing bowl place:
2 eggs
1/4 tsp. powered mustard
1/2 tsp salt
1 t. lemon juice
Using a stick blender I then mix this up and slowly pour in 1 1/2 cups vegetable oil. It doesn't take long, the blender makes it quick. Place into an correct size container and keep in the fridge. If you want, you can make less using only one egg. I find that this keeps about two to three weeks in the fridge.