Slow Cooker Triple Berry Crisp

Scaled for 12 portions · 3 steps

1.25 cupold-fashioned rolled oats0.75 cupwhite whole wheat flour0.5 cupsliced almonds (or swap chopped walnuts, pecans, or simply omit)0.5 tspground cinnamon0.5 tspkosher salt6 tbspunsalted butter0.33 cuppure maple syrup (or honey, I use maple syrup)5 cupmixed berries (fresh or frozen (I used a blend of blueberries, raspberries, and blackberries))1 tbspfreshly squeezed lemon juice2 tsppure vanilla extract0.5–1 tbspcornstarch—Optional for serving: vanilla ice cream ( or frozen yogurt, whipped cream, or Greek yogurt)

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