My partner and I were given one of these: https://www.dualit.com/products/classic-toasters https://www.dualit.com/products/classic-toasters They're dead simple

My partner and I were given one of these: https://www.dualit.com/products/classic-toasters https://www.dualit.com/products/classic-toasters They're dead simple, and work excellently. The bars you're mentioning are single, wide and flat, so they'd support thin slices well.