Preheat your oven to 350 degrees Fahrenheit and let it warm while you mix everything together. Gather all your ingredients on the counter so you can work smoothly without searching through cabinets mid-recipe.

In a large mixing bowl, stir together the rolled oats, brown sugar, cinnamon, baking powder, and salt. Use a whisk or fork to break up any sugar clumps and distribute the spices evenly throughout the oats.

In the same bowl, add your eggs, milk, melted butter, and vanilla extract. Beat everything together until well combined and the mixture looks cohesive. The oats will start absorbing the liquid immediately.

Fold in the dried cranberries, making sure they’re distributed evenly throughout the mixture. This ensures every serving gets those lovely pops of flavor.

Spread the mixture into a 9×13-inch baking dish. You don’t need to grease it if you’re using butter in the recipe, but a light coating never hurts if you want extra-easy cleanup.

Slide the dish into your preheated oven and bake for about 40 minutes. You’ll know it’s ready when the top turns golden brown and the edges pull slightly away from the sides. Your kitchen will smell absolutely divine.

Remove from the oven and let it rest for a few minutes before serving. This brief cooling period lets everything set up perfectly.