Whisk together oats, flour sugar, and nuts in a medium bowl.
Sprinkle oat mixture over fruit filling (for crisp), then drizzle with melted butter.
Bake until browned and crisp, following your recipe's instructions for baking times and temps (see notes below). Enjoy!
Notes
How to Use: This recipe is super versatile and can be used to top everything from fruit crisps to pies and more! For best results, follow the recipe directions for whatever you are baking, as cooking times will vary.Make a Crisp with Any Fruit: Combine five to seven cups of fresh fruit (such as apples, peaches, rhubarb, berries, etc., or a combination) with ½ to 1 cups sugar (depending on how sweet the fruit is), 1 tablespoon lemon juice, and a tablespoon (or two) of flour or cornstarch in a large bowl; mix well. Transfer the fruit mixture to a buttered 8 x 8-inch baking dish, then make the crisp topping. Sprinkle the fruit with the topping, then drizzle with the melted butter. Bake at 350 degrees for about 45 to 50 minutes.More Tips: Make sure to read the info before this recipe card for helpful tips, photos, additional ideas for using the topping, related recipes, and more!