Preheat your oven to 350°F (175°C).

In a mixing bowl, combine sliced peaches, granulated sugar, cornstarch, vanilla extract, lemon juice, cinnamon, and a pinch of salt. Toss gently.

Grease a 9x9-inch baking dish with butter or non-stick spray. Pour the peach mixture into the dish.

In another bowl, combine rolled oats, flour, brown sugar, cinnamon, and salt. Drizzle in melted butter and mix until crumbly.

Sprinkle the topping over the peach filling. Bake for 30-35 minutes until topping is golden and peach juices bubble.

Let the Peach Crisp cool for 10-15 minutes before serving. Enjoy warm, optionally with vanilla ice cream.