Creating this enticing Gluten-Free Peach Cobbler is straightforward if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C) and grease a baking dish (about 9×13 inches).
2. Prepare Peaches: In a large bowl, toss sliced peaches with lemon juice, ½ cup sugar, cornstarch, cinnamon, and nutmeg. Spread the mixture evenly in the prepared baking dish.
3. Mix Dry Ingredients: In another bowl, combine gluten-free all-purpose flour, almond flour, rolled oats, salt, and baking powder. Stir until well mixed.
4. Combine Wet Ingredients: In a separate bowl, mix the melted butter, egg, vanilla extract, and milk until combined.
5. Combine Mixtures: Pour the wet ingredients into the dry ingredient mixture. Stir gently until combined; do not over-mix.
6. Top the Peaches: Spoon the topping mixture over the peach filling in an even layer, covering as much of the surface as possible.
7. Bake: Bake in the preheated oven for 30-35 minutes, or until the topping is golden brown and firm to the touch.
8. Cool: Remove from the oven and let it cool for 10-15 minutes before serving.

By following these steps, making an incredible Gluten-Free Peach Cobbler is easy and rewarding!