Auntie toasts the VRMMORPG

After Flora Fluss burns down the kitchen, her son insists she is too old to live alone. She's got two choices. Either move into a retirement home or spend the rest of her life within a virtual reality game governed by society's most advanced artificial intelligence. When you've worked a lifetime as an engineer for home appliances, naturally, you go with the option that has more toasters.
Soon, Flora finds out that the virtual world is more familiar than she thought. Though, it takes her a while to get used to the idea that tanks don't hold water or oil but the aggro of mobs.

Auntie toasts the VRMMORPG contains cute crafting, complicated game-mechanics plus how to exploit them, unconventional training methods, and a lot of toasters.