Ingredients

• 2 tablespoons quick-cooking oats, such as Quaker Quick Oats
• 2 tablespoons brown sugar
• 2 tablespoons walnuts, chopped
• 1 tablespoon all-purpose flour
• 1/8 teaspoon ground cinnamon
• 1 tablespoon cold unsalted butter
• 3/4 cup frozen mixed berries
• Plain or flavored Greek yogurt, for serving

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Instructions

1. Watch how to make this recipe.
2. Combine the oatmeal, sugar, walnuts, flour and cinnamon in a large mug. Using a fork, cut in the butter until the texture becomes crumbly.
3. Place the berries on top of the crumble mixture and microwave on high power for 2 minutes, until the fruit starts to bubble and slightly thicken. Stir to bring the crumble to the surface and serve with a dollop of yogurt on top.