American Dessert

Gluten-Free Peach Crisp

Naturally sweet summer peaches topped with a golden, crunchy gluten-free oat crumble that everyone at the table will reach for.

Some desserts just feel like summer in a bowl, and this gluten-free peach crisp is absolutely one of them. Fresh peaches bake down into a jammy, fragrant filling scented with cinnamon and vanilla, while the topping turns into a deeply golden, crackly layer of oats and almonds that shatters just slightly when your spoon breaks through. The aroma alone, warm spiced fruit and toasting butter filling the kitchen, is enough to make everyone appear in the doorway before the timer even goes off. And the best part is that every single component is naturally gluten-free, so no one has to miss out.

This recipe was built to work for everyone at the table without anyone feeling like they got a compromise version of something. Whether you are cooking for a guest with celiac disease, managing a gluten sensitivity in your own household, or simply trying to bake with fewer refined ingredients, this crisp delivers full flavor and satisfying texture without any of the usual trade-offs. It fits beautifully into summer dinners, weekend brunches, holiday spreads, and any occasion where a warm, homey dessert is exactly what the moment calls for.

If you have been avoiding crisps because most recipes call for all-purpose flour in the topping and you were not sure what to swap in, this recipe solves that problem simply and deliciously. Almond flour and certified gluten-free oats do the work that regular flour and oats usually handle, and they do it so well that guests who have no dietary restrictions will never notice the difference. This one tends to disappear faster than you expect, so consider making a double batch while you are at it.

Recipe at a Glance

⏱Prep Time20 mins

🔥Cook Time45 mins

🕐Total Time1 hr 5 mins

🍰Servings8 servings

🇺🇸CuisineAmerican

🔢Calories~305 per serving

Ingredients

Peach Filling

3 lbs fresh ripe peaches (about 6 to 7 medium), peeled, pitted, and sliced 1/2 inch thick

3 tablespoons granulated sugar

1 tablespoon light brown sugar, packed

1 tablespoon cornstarch

1 teaspoon fresh lemon juice

1/2 teaspoon ground cinnamon

1/4 teaspoon ground nutmeg

1/2 teaspoon pure vanilla extract

1/8 teaspoon fine salt

Gluten-Free Oat Topping

1 1/4 cups certified gluten-free old-fashioned rolled oats

1/2 cup almond flour (blanched, finely ground)

1/2 cup light brown sugar, packed

1/3 cup sliced or roughly chopped raw almonds

1/2 teaspoon ground cinnamon

1/4 teaspoon fine salt

1/4 teaspoon ground nutmeg

6 tablespoons unsalted butter, cold and cut into small cubes

Substitutions & Variations

★Frozen sliced peaches can replace fresh when out of season; thaw them completely in a colander and pat them dry before seasoning to keep the filling from becoming too watery.

★Coconut flour can replace almond flour at a 1-to-3 ratio (use only 3 tablespoons of coconut flour for every half cup of almond flour called for) since coconut flour absorbs far more liquid.

★For a dairy-free and vegan version, replace the cold butter in the topping with solid refined coconut oil at the same quantity; keep it chilled until ready to use.

★Coconut sugar can substitute for the light brown sugar in both the filling and the topping at a 1-to-1 ratio for a slightly deeper, more caramel-like sweetness.

★Pure maple syrup can replace the granulated sugar in the filling, using 2 tablespoons in place of the 3 tablespoons of granulated sugar, which also reduces the total added sugar slightly.

★Nectarines, plums, or a combination of stone fruits work beautifully in place of the peaches using the same filling seasonings and timing.

Step-by-Step Instructions

1

Preheat the oven

Heat your oven to 350 degrees Fahrenheit and set a rack in the center position. Lightly grease a 9-by-13-inch baking dish with butter or coconut oil. This size gives the fruit filling enough room to spread into a uniform layer and allows the topping to cover the surface evenly, which helps both components cook at the same rate and prevents the topping from sinking into overly thick spots of fruit.

2

Peel and slice the peaches

Bring a large pot of water to a boil and prepare a bowl of ice water on the side. Score a shallow X on the bottom of each peach with a paring knife. Drop the peaches into the boiling water for 30 to 45 seconds, then immediately transfer them to the ice bath. Once they are cool enough to handle, starting at the scored X, the skins will slip off easily with almost no resistance. Pit each peach and slice into half-inch wedges. Keeping your slices consistent in thickness ensures they soften evenly during baking rather than leaving some pieces still firm while others collapse.

3

Season the filling

Combine the sliced peaches in a large bowl with both sugars, the cornstarch, lemon juice, cinnamon, nutmeg, vanilla, and salt. Toss gently with a rubber spatula until every slice is evenly coated. The cornstarch is the key ingredient that prevents a watery filling; it absorbs the juices the peaches release during baking and transforms them into a glossy, spoonable sauce. Let the mixture rest for five minutes while you prepare the topping, which gives the sugars time to begin drawing out the fruit's natural liquid.

4

Mix the dry topping

In a medium bowl, stir together the certified gluten-free rolled oats, almond flour, brown sugar, sliced almonds, cinnamon, salt, and nutmeg. Mix until there are no remaining lumps of brown sugar and everything is evenly distributed. Using certified gluten-free oats is essential if you are baking for someone with celiac disease, since regular oats are frequently cross-contaminated with wheat during processing. Almond flour replaces all-purpose flour here and adds a subtly nutty richness that complements the peaches beautifully.

5

Work in the cold butter

Scatter the cold butter cubes over the oat and almond flour mixture. Using your fingertips, press and rub the butter into the dry ingredients quickly, working before the heat of your hands can soften it significantly. Stop when the mixture forms rough, irregular clusters with some pieces still about the size of a pea. These uneven butter pockets are what create the signature crunchy, craggly texture of a great crisp topping once baked. If the mixture looks too uniform and smooth, it will bake up dense rather than light and crumbly.

6

Fill the baking dish

Pour the seasoned peach mixture into the prepared baking dish and use a spatula to spread it into an even layer. Scrape every last drop of the sugary juice from the bowl into the dish. That accumulated liquid is concentrated fruit flavor that will become the sauce underneath the topping as everything bakes, so do not leave any of it behind.

7

Add the topping

Scatter the oat topping in an even layer over the peach filling, covering the surface as completely as possible. Break up any very large clumps with your fingers but leave smaller irregular clusters intact. Do not press or pack the topping down into the fruit; it should rest loosely on top so that steam from the filling can escape upward and the surface can dry out and develop a proper crunch during baking.

8

Bake to golden perfection

Place the dish on the center rack and bake for 40 to 48 minutes. The crisp is ready when the topping is a deep, even golden brown and the peach filling is actively bubbling around the edges and up through any natural gaps in the oat layer. Almond flour browns a touch faster than regular flour, so start checking the color at the 35-minute mark. If the topping is browning too quickly before the fruit is fully bubbling, tent the dish loosely with aluminum foil and continue baking until the filling is thick and jammy.

9

Rest before serving

Remove the crisp from the oven and let it rest on a wire rack for 10 minutes before scooping. This brief resting period allows the cornstarch-thickened filling to set up slightly so it holds together when spooned into bowls instead of running all over the plate. The topping also firms up during this time, reaching its crispest and most satisfying texture.

Pro Baker Tips

✓Always check that your oats are labeled certified gluten-free; conventional oats are often processed in facilities that also handle wheat, barley, and rye, making them unsafe for people with celiac disease.

✓Use blanched, finely ground almond flour rather than almond meal for the best topping texture; almond meal is coarser and produces a grainier, less cohesive crumble.

✓Keep your butter cold straight from the refrigerator and work it into the topping quickly; warm butter integrates too smoothly and produces a dense layer instead of the open, crunchy clusters you want.

✓Choose ripe, fragrant peaches that yield slightly to gentle pressure; very firm peaches will not soften enough during baking, and overripe ones will collapse into mush.

✓If your peaches are on the tart side, add one extra teaspoon of granulated sugar to the filling to bring the sweetness into balance without changing the texture.

✓Almond flour browns faster than all-purpose flour, so watch the topping closely in the final 10 minutes and use foil to tent if needed to prevent over-browning before the filling is done.

✓For a toastier nut flavor, spread the sliced almonds on a dry baking sheet and toast them in the preheated oven for four minutes before adding them to the topping mixture.

Storage & Serving Notes

◆Cover the cooled crisp tightly with plastic wrap or store portions in an airtight container in the refrigerator for up to four days.

◆Reheat individual portions in a 325-degree oven for 12 to 15 minutes uncovered to restore the crunch in the almond flour and oat topping far better than the microwave can.

◆The microwave is fine for a quick warm-up; heat individual servings for 45 to 60 seconds, though the topping will be noticeably softer than when oven-reheated.

◆This crisp freezes well after baking; wrap it tightly in plastic wrap followed by aluminum foil and freeze for up to two months. Thaw overnight in the refrigerator and reheat in a 325-degree oven.

◆The dry topping ingredients can be mixed and stored in a sealed container in the refrigerator for up to three days; work in the cold butter on the day you bake for the best texture.

Serving Suggestions

This gluten-free peach crisp is a natural fit for a range of toppings and accompaniments that let everyone customize their bowl.

›A generous scoop of gluten-free vanilla bean ice cream melting into the warm spiced fruit

›Lightly sweetened whipped cream with a dusting of cinnamon on top

›Plain or vanilla Greek yogurt for a cool, tangy, protein-rich pairing

›A drizzle of warm honey or salted caramel sauce over the golden topping

›A handful of fresh raspberries or blueberries on the side for a burst of extra fruit flavor

Frequently Asked Questions

Are regular oats gluten-free, or do I need to buy a special kind?

Oats are naturally gluten-free, but they are very commonly cross-contaminated with wheat, barley, or rye during growing, harvesting, and processing. For anyone with celiac disease or a serious gluten sensitivity, regular oats are not safe. You need oats that are specifically labeled certified gluten-free, which means they have been tested and confirmed to contain less than 20 parts per million of gluten. These are widely available at most grocery stores and online.

Can I use a different gluten-free flour instead of almond flour?

Yes, with some adjustments. A gluten-free 1-to-1 baking flour blend is the easiest swap and can be used at the same quantity as the almond flour called for in this recipe. Coconut flour is much more absorbent and should only be used at about one-third the amount. Oat flour (made from certified gluten-free oats) also works well at a 1-to-1 ratio and keeps the topping more neutral in flavor if you prefer less of an almond presence.

How do I know this crisp is truly gluten-free and safe for someone with celiac disease?

The recipe itself is gluten-free by design, but cross-contamination in your kitchen is the most important factor to consider when cooking for someone with celiac disease. Use dedicated gluten-free cookware and utensils, clean all surfaces thoroughly before you begin, and confirm that every ingredient you purchase is labeled gluten-free, including your oats, almond flour, and vanilla extract. Some vanilla extracts contain gluten-based additives, so look for a brand that specifically states it is gluten-free.

Can I make this crisp ahead of time?

Absolutely. Assemble the full crisp in the baking dish, cover it tightly with plastic wrap, and refrigerate for up to 24 hours before baking. When you are ready, pull it from the fridge while the oven preheats and add five to eight extra minutes to the baking time since the dish is starting cold. Watch the topping closely as almond flour can brown faster than all-purpose flour and may need foil tenting in the last stretch.

My topping came out soft instead of crunchy. What went wrong?

A few things can cause a soft topping: the butter was too warm when worked into the mixture, the topping was pressed down too firmly over the fruit before baking, or the crisp needed a few more minutes in the oven. Make sure your butter is cold straight from the refrigerator, scatter the topping loosely rather than packing it, and bake until you see thick, active bubbling from the filling around the edges. If needed, run the dish under the broiler on low for two to three minutes at the very end to crisp the surface.

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Go Make It!

Great desserts should be for everyone, and this gluten-free peach crisp makes sure that is exactly the case. It delivers every bit of the warmth, crunch, and sweet fruit flavor you want from a classic crisp, all without a single speck of gluten in sight. Whether you are baking for a guest who needs it, a household that prefers it, or simply because it looked delicious and you were curious, this recipe will not let you down. Pull out your best summer peaches, preheat that oven, and get ready to share something genuinely wonderful.