I was revisiting my old Valentine's Day set and decided to take the Muffins and make them edible.
You can buy the Miffin Box from Misc Decor or Small Appliances category. It cost 50$. You can open it or place it in the inventory.
When you open it, the box will disappear and 4 random valentines muffins will show up in your Sim's inventory.
The Muffins Box Team
