Ingredient:

• 2 pounds (32 ounces, about 5 cups) mixed berries, fresh or frozen*
• ⅓ cup honey or maple syrup
• 2 tablespoons arrowroot starch or 3 tablespoons cornstarch
• ½ teaspoon orange or lemon zest (if you don’t love strong citrus flavor, scale back to ¼ teaspoon, or omit)
• 2 tablespoons orange or lemon juice
• Gluten-free oat and almond topping
• 1 cup old-fashioned oats**
• ½ cup packed almond flour or almond meal
• ½ cup sliced almonds or chopped pistachios or pecans (optional)
• ⅓ cup packed coconut sugar or brown sugar
• ¼ teaspoon fine salt
• 4 tablespoons unsalted butter, melted
• 3 tablespoons plain yogurt (Greek or regular), or additional melted butter
• Plus vanilla ice cream, for serving