Place flour and salt in food processor, then scatter butter on top and pulse until you reach a fine grain.
Slowly pour the water into the flour mixture and mix on low until ingredients begin to form large clumps of dough.
Remove dough from food processor and transfer to a floured surface and carefully knead together.
Form the dough into the shape of your tart pan and then wrap in plastic wrap and place in the fridge for at least 30 minutes.
Heat oil in skillet on high then add shallots and thyme and saute until flavors release.
Lower heat to medium then add sugar and saute until shallots brown and soften. Once cooked remove from heat and set aside.
Remove dough from fridge and place on a floured surface.
Roll out dough at least 1 inch larger than your tart pan.
Fold dough on top of rolling pin and transfer to tart pan.
Carefully press the dough into the bottom and up the sides of your tart pan.
Then roll the rolling pin over the top of the tart pan to remove the excess dough.
Cut a piece of parchment paper the size of the base of the part pan.
Prick the dough in the base of the pan several times then cover with the piece of parchment paper.
Cover with pie weights or beans and place in a preheated oven at 400.
Blind bake until edges are lightly golden, then remove from oven.
Remove pie weights and parchment paper, then return to the oven for 8 minutes or until the base is lightly golden, then remove from oven and lower heat to 375.
Spread shallots on base of pie crust, then sprinkle crumbled feta.
Place tomatoes in a large bowl.
Whisk EVOO and balsamic vinegar together, then pour on top of tomatoes.
Toss tomatoes until coated then arrange on top of feta.
Place in oven at 375 and allow to cook until the skins of the tomatoes begin to split.
Drizzle the leftover EVOO and balsamic over the tomatoes and return to the oven.
Cook for a further 5-10 minutes then remove from oven and allow to cool.
Remove from tart pan once cooled a little, then serve.