Ingredients You’ll Need
For the Peach Filling
6 cups frozen sliced peaches, thawed and drained
½ cup granulated sugar
2 tablespoons all-purpose flour
1 teaspoon vanilla extract
½ teaspoon ground cinnamon
1 tablespoon lemon juice
For the Crisp Topping
1 cup old-fashioned rolled oats
¾ cup all-purpose flour
½ cup packed light brown sugar
½ teaspoon ground cinnamon
¼ teaspoon salt
½ cup unsalted butter, melted
Tools You’ll Need
You only need a few basic kitchen tools:
9×9-inch baking dish
Large mixing bowl
Medium mixing bowl
Mixing spoon or spatula
Measuring cups and spoons
Lightly grease the baking dish before assembling the crisp.
Ingredient Additions and Substitutions
This recipe is built around a straightforward combination of peaches, warm spices, oats, flour, sugar, and butter. If you’re preparing it exactly as written, simply follow the ingredient list above.
The recipe specifically calls for frozen sliced peaches, which should be thawed and drained before they're mixed with the other filling ingredients.
For the topping, use old-fashioned rolled oats as specified for the intended texture.
How to Make Old-Fashioned Frozen Peach Crisp
Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C).
Lightly grease a 9×9-inch baking dish and set it aside.
Step 2: Prepare the Peaches
Place the 6 cups of thawed and drained frozen peaches into a large bowl.
Add:
½ cup granulated sugar
2 tablespoons all-purpose flour
1 teaspoon vanilla extract
½ teaspoon ground cinnamon
1 tablespoon lemon juice
Stir gently until the peaches are evenly coated.
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Step 3: Make the Crisp Topping
In another bowl, combine:
1 cup old-fashioned rolled oats
¾ cup all-purpose flour
½ cup packed light brown sugar
½ teaspoon ground cinnamon
¼ teaspoon salt
Pour in the ½ cup melted unsalted butter.
Stir everything together until the mixture is crumbly and evenly moistened.
Step 4: Assemble the Crisp
Spread the prepared peach mixture evenly into the greased baking dish.
Then sprinkle the crisp topping over the peaches, making sure the surface is completely covered.
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Step 5: Bake
Place the dish in the preheated oven.
Bake for 45–50 minutes, or until:
The peach filling is bubbling around the edges.
The topping is golden brown.
Those are your visual cues that this peach crisp is ready.
Step 6: Cool Slightly
Remove the crisp from the oven and let it cool for 10–15 minutes before serving.
I know—it’s tempting to dig right in! But this short resting time gives the peach filling a chance to thicken, making it easier to serve.
What to Serve With Peach Crisp
This warm peach crisp is delicious on its own, but it also makes a beautiful dessert to serve after a family meal.
For an especially cozy presentation, serve it while it’s still slightly warm so you can enjoy the contrast between the bubbling fruit and golden oat topping.
Tips for Making the Best Peach Crisp
Drain the Peaches Well
Because this recipe uses frozen peaches, be sure to thaw and drain them before making the filling.
Stir the Peaches Gently
When combining the peaches with the sugar, flour, vanilla, cinnamon, and lemon juice, stir gently so the slices remain intact.
Make Sure the Topping Is Evenly Moistened
When you add the melted butter to the oat mixture, stir until the ingredients are crumbly and evenly moistened. This helps create the classic crisp topping.
Watch for the Right Color
The crisp is ready when the peach filling is bubbling around the edges and the topping is golden brown.
Don’t Skip the Resting Time
Give the finished crisp 10–15 minutes to cool slightly. This allows the filling to thicken before serving.
How to Store Peach Crisp
The provided recipe does not include specific storage or reheating instructions, so those details aren't specified here.
General Recipe Information
Recipe: Old-Fashioned Frozen Peach Crisp
Oven temperature: 375°F (190°C)
Baking dish: 9×9-inch
Bake time: 45–50 minutes
Cooling time: 10–15 minutes
Main fruit: Frozen sliced peaches
Frequently Asked Questions
Can I use frozen peaches for peach crisp?
Yes. This recipe is specifically designed for frozen sliced peaches. They should be thawed and drained before being added to the filling.
Do I need to drain the frozen peaches?
Yes. The recipe calls for 6 cups frozen sliced peaches, thawed and drained.
What kind of oats should I use?
The topping calls for old-fashioned rolled oats.
Why does the peach filling need flour?
The 2 tablespoons of all-purpose flour are mixed into the peach filling along with the sugar and other ingredients.
How long does peach crisp bake?
Bake it at 375°F (190°C) for 45–50 minutes, until the filling is bubbling around the edges and the topping is golden brown.
How long should peach crisp cool before serving?
Allow it to cool slightly for 10–15 minutes. This gives the filling time to thicken.
Can I prepare the topping separately?
Yes. The topping is mixed in its own bowl before being sprinkled over the prepared peach filling.
Final Thoughts
This Old-Fashioned Frozen Peach Crisp is proof that a comforting homemade dessert doesn’t have to be complicated.
With thawed frozen peaches, a handful of everyday ingredients, and a buttery oat topping, you can have a bubbling, golden dessert in the oven with very little fuss.
And I especially love that frozen peaches make this recipe convenient whenever you want that classic peach-dessert flavor.
Simple, cozy, fruity, and wonderfully old-fashioned!
More Peach Recipes to Try
If you’re on a peach kick, keep exploring with other peach desserts and recipes. Peach cobblers, peach pies, peach crisps, and other fruit-forward treats are all wonderful ways to make the most of that sweet, summery flavor.
Did You Make This Recipe?
If you make this Old-Fashioned Frozen Peach Crisp, I’d love to hear how it turned out!
Leave a review and share your experience. And if you take a photo, share it on Pinterest so other peach lovers can discover this cozy dessert, too!
Nutritional Information
Approximate nutritional information is not provided in the recipe source, so it has not been included here rather than estimating values without sufficient information.
