Step 1
Preheat the oven to 375 degrees F (190 degrees C).
Step 2
Combine flour and sugar in a bowl. Cut in butter until the mixture resembles coarse crumbs.
Step 3
Combine egg yolks and milk in a small bowl; stir into flour mixture until dough is blended.
Step 4
Press dough using lightly floured hands into the bottom and 1 inch up the sides of a 12-inch tart pan with a removable bottom. Line the unpricked shell with a double thickness of aluminum foil. Place pan on a large baking sheet.
Step 5
Bake in the preheated oven until edges are lightly browned 12 to 15 minutes.
Step 6
Meanwhile combine condensed milk maple flavoring cinnamon and salt in a medium bowl. Stir pecans walnuts and almonds into the batter.
Step 7
Remove shell from the oven leaving oven on and fill with batter.
Step 8
Return tart to the oven and bake until golden brown 20 to 25 minutes.
Step 9
Remove from the oven and cool completely on a wire rack about 30 minutes.
Step 9
Place chocolate chips in a microwave-safe bowl and heat in a microwave oven until melted 1 to 3 minutes. Drizzle tart with melted chocolate. Refrigerate until chocolate has hardened and filling is firm.