Sift in the flour. Grate in frozen butter and mix with a pasty cutter.
Add in the egg and ice water 1 tablespoon at a time. Mix until crumbly.
Divide dough into two. Then, place dough between two sheets of plastic wrap. Roll out the size of an 8 inch pan.
Place in pan and bake at 415 for 18 minutes. Cool completely.
Peel and slice apples, about 1/4 of an inch. Then mix with ingredients for the filling except the butter.
Fill cooled tart with filling and top with bits of butter - bake for 35 minutes at 350.
In a skillet heat sugar and keep whisking around to keep it from burning.
Once sugar is fully melted add in butter. It'll bubble, keep on low and wait for butter to fully melt.
Next, slowly add cream and boil for 1 minute. Add in salt and stir.
Once tart is done, set it on a platter and top with caramel.