The Chain With The Absolute Cheapest Breakfast Sandwich Might Come As A Shock - Chowhound

Azurita/Getty Images Keeping up with fluctuating food prices isn't easy these days, so if you ever wondered which fast food chain has the cheapest breakfast sandwich, you're not alone. But at the time of writing, White Castle takes the crown with a $2.89 egg and cheese breakfast slider — cheaper than the average cup of drip coffee. It's an outright steal, if you ask us. This may come as a surprise considering…