Preheat oven to 350F. Measure your ingredients. Cream brown and white sugar with butter. Mix in the eggs and vanilla. I like to give the raisins a rough chop so theyre better distributed.
Combine your dry ingredients whisk together. Add the dry ingredients into the creamed sugar and egg mixture. Fold in the oats and raisins. Grease your skillet on the bottoms and sides with butter. Spread the goodness into the skillet evenly.
Bake 35-40 minutes. The sides should be crisp and the top golden. It will feel a bit soft in the center but the ambient heat from the skillet will finish it off as its cooling.
