Preheat the oven to 400°F / 200°C. Grease a 24cm tart pan with removable bottom well with butter.
For the tart base, in a mixing bowl, add the flour and butter and using your hands rub the butter into the flour until it resembles a coarse grain, sand-like consistency. Add the salt and cinnamon and mix well to combine. Add the egg and milk and then mix, using your hands, to incorporate until the mixture comes together into a dough.
Pour the filling over the tart base and spread evenly. Arrange the unpeeled pear slices on top. Transfer to the oven and bake for 35-40 minutes, until filling is firm and tart is golden brown. Remove from the oven and let stand at least 30 minutes to fully set and cool before removing from the form.
To serve, dust with powdered sugar, if desired. Enjoy!
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