Xanthan Gum Free Orange-Pistachio Peach Oat Crisp
Juicy summer peaches meet bright citrus and crunchy pistachios in a bubbling, golden crisp that feels like pure comfort in a baking dish. The filling gets its glossy, jammy texture from arrowroot starch — a completely natural thickener that does the job beautifully without any gums or additives. That matters more than you might think, because so many packaged dessert mixes and gluten-free baking blends sneak xanthan gum in as a binder, making it genuinely hard to find a clean, fuss-free dessert. Here, every ingredient is straightforward: fresh peaches tossed with honey, orange zest, warm spices, and that simple starch, then topped with a hearty mix of rolled oats, almond flour, chopped pistachios, coconut oil, and more honey. The orange zest woven through both the filling and the topping ties the whole thing together with a fragrant, citrusy lift that makes each bite feel a little special. After about 35 to 40 minutes in the oven, the topping turns deep golden and the fruit bubbles up around the edges in the most satisfying way. Let it rest just long enough for the filling to settle, then scoop it warm — ideally with a generous spoonful of something cold on top.
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Learn more →Ingredients
6 servings
For the filling
- 2 lbs fresh peaches (about 5–6 medium), pitted and sliced ½-inch thick
- 2 tbsp honey
- 1 tsp orange zest
- 1 tbsp fresh orange juice
- ½ tsp ground cinnamon
- ¼ tsp ground ginger
- 1 tbsp arrowroot starch
For the topping
- 1 ½ cups old-fashioned rolled oats
- ½ cup raw pistachios, roughly chopped
- ¼ cup almond flour
- 3 tbsp honey
- 3 tbsp coconut oil, melted
- 1 tsp orange zest
- ½ tsp ground cinnamon
- ¼ tsp fine sea salt
Instructions
- 1
Preheat the oven to 350°F (175°C). Lightly grease a 9-inch baking dish with a small amount of coconut oil.
- 2
In a large mixing bowl, combine the sliced peaches, 2 tbsp honey, 1 tsp orange zest, orange juice, 1/2 tsp cinnamon, ground ginger, and arrowroot starch. Toss until the peaches are evenly coated, then spread them in an even layer in the prepared baking dish.
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