Slow Cooker Steel Cut Oats

Bahan-bahan (4 porsi)

• 1 cup steel cut oats* (quick cooking , such as Bob’s Red Mill)
• 2 cups water
• 1 tablespoon pure maple syrup (plus more for serving)
• 1/4 teaspoon cinnamon
• 1/3 cup egg whites
• 2 cups mixed fresh berries (blueberries, blackberries, raspberries)
• 1 medium ripe banana (sliced)
• 1/4 cup chopped pecans or walnuts