Ingredient:

• 4 cups sliced fresh strawberries
• 1/4 cup sugar
• 1 tablespoon cornstarch
• 1 teaspoon vanilla extract
• 1 cup old-fashioned oats
• 3/4 cup all-purpose flour
• 1/2 cup sugar
• 1/2 cup packed brown sugar
• 1/2 teaspoon ground cinnamon
• 1/4 teaspoon salt
• 1/2 cup butter, melted
• Vanilla ice cream, optional