There is something about a warm, bubbling fruit crisp fresh from the oven that feels like a hug in dessert form. This old-fashioned Peach Crisp is exactly that — sweet, juicy fresh peaches seasoned with cinnamon and sugar, topped with a buttery, golden oat crumble that bakes up perfectly crisp at the edges and tender in the center. It is the kind of dessert that has been making summer tables happy for generations, and one taste will tell you exactly why.
What makes this Peach Crisp so reliably wonderful is how straightforward it is. There is no pastry dough to worry about, no fussing with a lattice crust, and no complicated technique — just beautiful fruit, a simple toss of seasoning, and a crumble topping that comes together with one bowl and ten minutes of prep. Whether you are making it for a family dinner, a potluck, or a quiet weekend at home, it is the kind of recipe that always delivers and always impresses.
Why You’ll Love This Peach Crisp
It is incredibly fast to make. Ten minutes of prep and twenty minutes in the oven — that is the whole recipe. Fresh fruit desserts do not get much more efficient than this.
The filling is perfectly balanced. Granulated sugar, a touch of cornstarch to thicken the juices, a teaspoon of cinnamon, and a pinch of salt give the peach filling all the structure and seasoning it needs without overshadowing the natural sweetness of the fruit.
The oat topping is pure gold. Brown sugar, butter, flour, cinnamon, and old-fashioned oats come together into a deeply satisfying, chewy-crisp crumble that is the highlight of every single spoonful.
It uses fresh, real ingredients. Eight cups of fresh peaches are the star of the show here, and when peaches are at their summer peak, the flavor is simply extraordinary.
It is made for sharing. This recipe serves six generous portions and doubles easily for a larger crowd. It also reheats beautifully, making it a natural make-ahead dessert for gatherings.
Ingredients
Here is everything you need to make this Peach Crisp:
- 8 cups fresh peaches, peeled and thinly sliced
- 1/2 cup granulated sugar
- 1/2 cup plus 2 tablespoons all-purpose flour, divided
- 1 tablespoon cornstarch
- 2 teaspoons ground cinnamon, divided
- 1/4 teaspoon salt
- 3/4 cup packed light brown sugar
- 1/2 cup (1 stick) salted butter, at room temperature
- 1 3/4 cups old-fashioned oats
A few notes on the ingredients that make a difference. Room temperature butter is important for the crumble topping — it needs to be soft enough to work into the flour and brown sugar mixture easily and create that clumpy, coarse texture. Cold butter will not incorporate smoothly.
Old-fashioned rolled oats are specifically called for here, not quick oats or instant oats. Old-fashioned oats hold their structure during baking and give you the hearty, chewy-crisp texture that defines a great fruit crisp topping. Quick oats will produce a softer, less textured result.
The cornstarch is a quiet hero in the peach filling. It combines with the natural juices the peaches release during baking to create a beautifully thick, syrupy filling that holds together instead of being watery. Do not skip it.
Step-by-Step Instructions
Step 1 – Preheat and Prep the Pan
Preheat your oven to 400 degrees Fahrenheit. Butter a 9×9-inch baking pan generously and set it aside.
Step 2 – Make the Peach Filling
In a large mixing bowl, combine the sliced peaches, granulated sugar, 2 tablespoons of flour, cornstarch, 1 teaspoon of cinnamon, and the salt. Toss and stir until the peaches are evenly coated in the sugar mixture and everything is well combined. Pour the peach mixture into the prepared baking pan and spread into an even layer. Set aside.
Step 3 – Make the Oat Crumble Topping
Using the same large bowl (no need to wash it), combine the light brown sugar, remaining 1/2 cup of flour, room temperature butter, and remaining teaspoon of cinnamon. Work the mixture together with a fork, pastry blender, or your hands until it forms a wet, chunky, clumpy mixture with no dry flour remaining. Add the old-fashioned oats and stir or squeeze with your hands until the oats are evenly incorporated and you have a coarse, crumbly topping. Working with your hands is genuinely the easiest method here.
Step 4 – Assemble and Bake
Crumble the oat topping evenly over the peach filling, distributing it in a relatively even layer from edge to edge. Bake for 20 to 25 minutes until the oats around the edges have turned a light golden brown and the peach filling is bubbling up through the topping at the sides. Remove from the oven and allow to rest for 10 minutes — this resting time is important, as it lets the filling thicken and set so it scoops cleanly rather than running all over the bowl.
Step 5 – Serve
Scoop the warm Peach Crisp into bowls and serve immediately, topped with a generous scoop of vanilla ice cream if desired. The contrast of warm, bubbling crisp and cold, melting ice cream is one of summer’s greatest pleasures.
Expert Tips for the Best Peach Crisp
Use ripe, flavorful peaches. The peaches are doing most of the heavy lifting in this dessert, so their quality matters enormously. Look for peaches that are fragrant, slightly soft to the touch, and deeply golden with rosy blush coloring. Under-ripe peaches will not release enough juice or sweetness during baking.
Do not skip the resting time. After 20 to 25 minutes in a hot oven, the filling will be extremely liquidy and bubbly. Ten minutes of resting allows the cornstarch-thickened juices to set into that gorgeous, glossy, scoopable consistency that makes every spoonful so satisfying.
Use your hands for the crumble. The recipe mentions this and it really is the best advice. Your hands warm the butter slightly and squeeze the ingredients together into perfect crumbly clusters in a way that a spoon or fork cannot replicate. Embrace the mess — it is worth it.
Taste the peaches before adding sugar. The sweetness of fresh peaches varies widely depending on variety and ripeness. If your peaches are very sweet and ripe, you may want to reduce the granulated sugar slightly. If they are a little tart or not fully ripe, keep the full amount.
Watch the oven toward the end. At 400 degrees the topping can go from golden to too dark quickly. Start checking at the 20-minute mark and pull the crisp when the edges are just turning light golden and the filling is visibly bubbling.
Variations
Add fresh ginger. Stir half a teaspoon of freshly grated ginger into the peach filling before baking for a warm, slightly spicy kick that pairs beautifully with the cinnamon and peach combination.
Mix in another fruit. Add a cup of fresh blueberries, raspberries, or blackberries to the peach filling before pouring it into the pan. Berry and peach is a classic pairing that adds beautiful color and a slightly tart contrast to the sweet filling.
Make it gluten-free. Substitute the all-purpose flour in both the filling and the topping with a 1:1 gluten-free baking flour blend. Make sure your oats are certified gluten-free as well and the result will be just as delicious.
Add nuts to the topping. Stir a half cup of roughly chopped pecans or slivered almonds into the oat crumble before baking for extra crunch and a nutty richness that takes the topping to another level.
Make individual crisps. Divide the filling and topping evenly among individual ramekins for single-serving portions that are adorable for a dinner party or special occasion. Reduce the baking time to 15 to 18 minutes and watch closely.
Storage and Reheating
Refrigerator: Cover the cooled crisp tightly with plastic wrap or transfer to an airtight container and refrigerate for up to four days. The topping will soften somewhat as it sits in the refrigerator but it is still delicious.
Reheating: Reheat individual portions in the microwave for 45 seconds to 1 minute, or reheat the full pan in a 350-degree oven for 15 minutes. For the crispiest topping, the oven method is always better than the microwave.
Freezing: This Peach Crisp freezes well. Allow it to cool completely, then wrap tightly and freeze for up to two months. Thaw overnight in the refrigerator and reheat in a 350-degree oven until warmed through and bubbling.
Make ahead: You can assemble the entire crisp — filling in the pan, topping crumbled over — and refrigerate it unbaked for up to 24 hours. Bake directly from cold, adding 5 minutes to the baking time.
Serving Suggestions
This Peach Crisp is wonderful in so many contexts. Here are the best ways to serve and enjoy it:
The classic pairing is a scoop of good vanilla ice cream on top of a warm, just-from-the-oven serving. The cold, creamy ice cream melts into the hot, bubbly filling and creates a combination that is genuinely one of the best bites of summer. If you love peach desserts, this peach cobbler is another beloved classic that belongs in your collection.
Serve it with fresh whipped cream as a lighter alternative to ice cream. A few spoonfuls of softly whipped cream over the warm crisp is elegant and perfectly proportioned.
Bring it to a summer cookout or potluck. It transports well in the baking dish, reheats easily at the destination, and serves a crowd without any complicated plating or serving needs.
Enjoy it for breakfast the next morning. A scoop of leftover Peach Crisp with a dollop of Greek yogurt alongside a cup of coffee is an entirely reasonable and thoroughly satisfying start to the day.
Pair it with other summer fruit desserts on a dessert table. Alongside a strawberry shortcake or a simple fruit tart, this crisp rounds out a summer dessert spread beautifully.
Frequently Asked Questions
Can I use frozen peaches instead of fresh?
Yes. Frozen peaches work well in this recipe. Thaw them completely and drain off the excess liquid before using — frozen peaches release significantly more moisture than fresh as they thaw and bake, and draining prevents a watery filling. You may also want to increase the cornstarch by half a teaspoon to help thicken the extra juice.
Do I need to peel the peaches?
Peeling is recommended for the best texture. Peach skin can become slightly tough and chewy after baking. A quick blanch in boiling water for 30 seconds followed by an ice bath makes the skin slip off effortlessly and is well worth the extra two minutes.
Can I make this in a different sized pan?
Yes. A 9×13-inch pan can be used for a larger batch — simply double all ingredients and bake for the same amount of time, checking for golden edges and bubbling filling as your visual cues. Individual ramekins also work well with a slightly shorter baking time.
Why is my filling watery?
The most common cause is not allowing the crisp to rest for 10 minutes after baking. The cornstarch needs a few minutes to fully set as the filling cools slightly. Another cause can be very juicy, overripe peaches — in this case, an extra half teaspoon of cornstarch in the filling helps.
Can I use quick oats instead of old-fashioned oats?
Old-fashioned oats are strongly recommended for their heartier texture and better structure after baking. Quick oats produce a softer, denser topping that lacks the crunch and chewiness that makes a great crisp topping so satisfying.
Final Thoughts
This old-fashioned Peach Crisp is one of those timeless summer desserts that never needs improving — it is simply perfect as it is. Fresh peaches at their peak, a warm cinnamon sweetness, and a buttery, golden oat topping that is somehow both crisp and chewy at the same time. Make it once and it will become your signature summer dessert that friends and family request every year from the moment peaches start appearing at the market. Warm from the oven, with ice cream melting over the top — there is nothing better.
Peach Crisp
Ingredients
- 8 cups fresh peaches peeled and thinly sliced
- 1/2 cup granulated sugar
- 2 tablespoons all-purpose flour for the filling
- 1 tablespoon cornstarch
- 1 teaspoon ground cinnamon for the filling
- 1/4 teaspoon salt
- 3/4 cup packed light brown sugar
- 1/2 cup all-purpose flour for the topping
- 1 teaspoon ground cinnamon for the topping
- 1/2 cup 1 stick salted butter, at room temperature
- 1 3/4 cups old-fashioned oats
Instructions
- Preheat the oven to 400 degrees Fahrenheit. Butter a 9×9-inch baking pan and set aside.
- In a large bowl, combine the sliced peaches, granulated sugar, 2 tablespoons flour, cornstarch, 1 teaspoon cinnamon, and salt. Stir until the peaches are evenly coated. Pour into the prepared baking pan.
- In the same bowl, combine the brown sugar, 1/2 cup flour, room temperature butter, and remaining teaspoon of cinnamon. Work together with your hands or a fork until the mixture is wet and clumpy. Add the oats and mix until a coarse crumble forms.
- Crumble the oat topping evenly over the peach filling.
- Bake for 20 to 25 minutes until the topping is light golden at the edges and the filling is bubbling.
- Remove from the oven and rest for 10 minutes before serving. Serve warm with vanilla ice cream if desired.
Notes
Old-fashioned rolled oats are recommended over quick oats for the best crumble texture.
Room temperature butter is important for the crumble to come together properly.
Allow 10 minutes of resting time after baking for the filling to thicken and set.
Store covered in the refrigerator for up to 4 days. Reheat in a 350-degree oven for 15 minutes.
Freeze cooled crisp for up to 2 months. Thaw overnight and reheat before serving.
Can be assembled unbaked and refrigerated for up to 24 hours before baking.