Head on over and print an Idahoan coupon and save $1.00 on one Idahoan Signature Russets Mashed Potatoes product, 9.74 oz or 16.23 oz. Pair this Idahoan mashed potatoes coupon with a sale on the smaller pouch and pick up a nice buy. In addition, here is a $1.50/2 Idahoan Steakhouse Potatoes Coupon (includes any variety or size) you may also like.