Ingredients

• 6 large apples , cored and diced
• 1 cup diced rhubarb
• 1 cup white sugar , Optional
• 1.75 cups all-purpose flour , divided
• 1.5 teaspoons ground cinnamon , Optional
• 1.75 cups quick-cooking oats
• 1 cup brown sugar
• 1 cup chilled butter , cut into pieces
• 2 tablespoons white sugar , Optional

Instructions

1. 1 Gather the ingredients. Preheat the oven to 350 degrees F (175 degrees C). Butter a 9x13-inch baking dish.
2. 2 Mix apples, rhubarb, 1 cup white sugar, 1/4 cup flour, and 1 teaspoon cinnamon in a bowl until thoroughly combined. Spread fruit mixture into the bottom of the prepared baking dish.
3. 3 Mix oats, remaining 1 ½ cups flour, and brown sugar in a separate bowl; cut in butter until crumbly. Spread evenly over fruit mixture.
4. 4 Mix 2 tablespoons white sugar with remaining 1/2 teaspoon cinnamon in a small bowl; sprinkle over oat topping.
5. 5 Bake in the preheated oven until fruit is bubbling and thick and topping is golden brown, about 45 minutes. Let cool 10 to 15 minutes, then serve.

Nutrition per serving