Preheat your oven to 375°F (190°C) and butter an 8x8 inch baking pan.

Wash and peel the peaches, slicing them into wedges, and arrange evenly in the baking pan.

Combine flour, white sugar, brown sugar, salt, and cinnamon in a mixing bowl and whisk until incorporated.

Cut cold butter into the dry mixture until the texture resembles coarse crumbs.

Sprinkle the crumb mixture over the sliced peaches in the baking pan.

Bake in the preheated oven for 45-50 minutes until golden brown and bubbling.