Suggestions?

Eggless Mayonnaise - Recipe Cost

Ingredients	Per Serving Qty	Common Price	Price per Serving
1 med. Irish potatoes	0.08 potatoes	$0.50 per pound	$0.02
1/2 c. vinegar	2 teaspoons	n/a
1 teaspoon salt	0.08 teaspoon	$2.91 per 16 ounces	$0.00
1 pt. Wesson oil	0.08 pint	$3.00 per 48 fluid ounces	$0.08
1 teaspoon dry mustard	0.08 teaspoon	$2.69 per 8 ounces	$0.00
1/2 teaspoon sugar	0.04 teaspoon	$1.44 per pound	$0.00
Total per Serving			$0.11
Total Recipe			$1.34