Frozen raspberries, harvested and flash-frozen at their tangy-sweet peak, are great to have on hand in the depths of winter and year-round. Here they?re baked with chopped apples into a cozy, crowd-pleasing crumble-topped treat. Tip: To make your own oat flour for the crumble topping, pulse rolled oats in a food processor until they reach a flour-like consistency. You?ll need 2½ cups rolled oats to make 2 cups flour. The post Raspberry-Apple Crumble appeared first on Forks Over Knives.

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