(It's preferable to let this dough sit for several hours or overnight before baking so that the whole oats aren't tough [probably not necessary if using quick oats], but I don't always do that, and we don't mind it.) If not allowing dough to sit in the fridge for a few hours, preheat oven to 350.

Mix the oat bar ingredients (ideally mix dry and wet ingredients separately first, then combine).

When ready to bake (if you've let your dough sit in the fridge for a few hours), preheat oven to 350 if you haven't already.

Combine all filling ingredients and chop finely with knife or food processor.

Press half the oat dough into parchment-paper-lined 8-inch square or 9-inch springform baking dish, spread filling on top, and press the remaining dough on top of that. It's OK if some fruit is peeking out!

Bake for about 20 min or until it's set and golden brown with the fruit bubbling. Let cool before cutting.