To prepare filling, combine 1/2 cup milk, 2/3 cup sugar, and next 4 ingredients (2/3 cup sugar through egg) in a large bowl, stirring with a whisk.

Heat 1 1/2 cups milk in a heavy saucepan over medium-high heat to 180° or until tiny bubbles form around edge (do not boil). Remove from heat. Gradually add hot milk to sugar mixture; stir constantly with a whisk. Return milk mixture to pan. Add chopped chocolate; cook over medium heat until thick and bubbly (about 5 minutes); stir constantly. Reduce heat to low; cook 2 minutes, stirring constantly. Remove from heat; stir in vanilla. Pour into crust; cover surface of filling with plastic wrap. Chill 3 hours or until cold.

Preheat oven to 350°.

To prepare meringue, combine 1 cup sugar and water in a saucepan; bring to a boil. Cook, without stirring, until candy thermometer registers 240°. Beat egg whites and cream of tartar at high speed of a mixer until foamy. Pour hot sugar syrup in a thin stream over egg white mixture; beat at high speed until stiff peaks form. Remove wrap from filling. Spread meringue evenly over filling; seal to edge of crust.

Bake at 350° for 15 minutes or until lightly browned; cool on a wire rack. Chill until set.

Preheat oven to 425°.

Place the preserves in a small saucepan over medium-low heat, and cook 10 minutes or until melted. Keep warm over low heat.

Combine salt, oregano, garlic powder, and pepper; rub evenly over pork. Place pork on a rack coated with cooking spray; place rack in a shallow roasting pan. Bake at 425° for 30 minutes. Brush 1/4 cup preserves evenly over pork. Bake an additional 10 minutes. Brush remaining preserves evenly over pork. Bake an additional 10 minutes or until thermometer registers 155° (slightly pink). Let stand 10 minutes before slicing.

Preheat oven to 400°.

To prepare beef, combine Beef Stock and water in a saucepan; bring to a simmer. Place beef in a 13 x 9-inch baking dish; pour stock mixture over beef. Bake at 400° for 2 hours or until beef is tender.

Remove beef from the cooking liquid; cover and keep warm. Strain cooking liquid through a sieve over a bowl. Place a zip-top bag inside a 2-cup glass measure. Pour liquid into bag; let stand 10 minutes (fat will rise to the top). Seal bag; carefully snip off 1 corner of bag. Drain liquid into a saucepan, stopping before the fat layer reaches the opening; discard fat. Bring liquid to a boil; reduce to simmer. Cook 20 minutes or until reduced to 1 cup. Remove from heat; stir in 1 teaspoon thyme, 1/4 teaspoon salt, and 1/8 teaspoon pepper.

To prepare potatoes, place potatoes in a saucepan; cover with water. Bring to a boil. Reduce heat, and cook 12 minutes or until very tender. Drain. Return potatoes to pan. Add milk, butter, 1/2 teaspoon salt, and 1/4 teaspoon pepper; mash with a potato masher to desired consistency. Cook for 2 minutes or until thoroughly heated. Serve with beef. Serve sauce over beef; garnish with remaining 1 teaspoon thyme.