Be sure to check your oats to see if they are the quick-cooking kind. Don't use instant oatmeal, which will become mushy when it's baked in dough.
Not a nut lover? Go ahead and leave them out. The bars will be just as gooey and delicious.
It’s best to bake bars in the exact pan size called for in a recipe. Bars baked in a pan that is too large will overbake and be hard. Those baked in a pan that’s too small can be doughy in the center and hard on the edges.