A soggy crisp topping is a moisture problem, not a recipe problem
A crunchy apple crisp topping fails on moisture, not ingredients: the depth ratio against the fruit, the cold butter cut, and the last fifteen minutes.
rolled oats
Peanut butter oat bars set in the fridge while dinner cooks
No bake oat bars in one saucepan: the 3-to-1-to-half ratio, the syrup temperature that decides chewy or hard, and how they hold for four days packed.