Hot-Tin-Roof-Sundae

• 1 cup sugar
• 1/4 cup water
• 1/4 cup light corn syrup
• 1/4 teaspoon cream of tartar
• 1 cup heavy whipping cream
• 2 tablespoons (1/4 stick) unsalted butter
• 1/2 teaspoon coarse kosher salt
• 1/2 teaspoon vanilla extract
• 4 ounces bittersweet chocolate (preferably 60% cocoa), chopped
• 3 cups reduced-fat (2%) milk
• 12 tablespoons cocoa nibs,* divided
• 6 tablespoons sugar
• 6 tablespoons light corn syrup
• 3 large egg yolks
• 1 tablespoon cornstarch
• 11/2 cups chilled heavy whipping cream
• 1/8 teaspoon coarse kosher salt

1. Stir first 4 ingredients in heavy medium saucepan over medium heat until sugar dissolves, occasionally brushing down pan sides with wet pastry brush. Increase heat and boil until syrup is deep amber, swirling pan occasionally, about 10 minutes. Turn off heat. Add cream and butter (mixture will bubble up). Stir until any caramel bits dissolve. Stir in salt and vanilla. Add chocolate; stir until melted and smooth. DO AHEAD:
2. Transfer sauce to medium bowl; cover and chill. Rewarm before using.
3. Bring milk, 6 tablespoons cocoa nibs, sugar, and corn syrup just to boil in heavy medium saucepan over medium heat, stirring until sugar dissolves. Remove from heat; cover. Steep 20 minutes.
4. Whisk egg yolks and cornstarch in medium bowl until blended; gradually whisk in warm milk mixture. Return custard to same saucepan. Cook over medium heat, stirring constantly, until custard thickens and just begins to boil, 2 to 3 minutes. Strain custard into large bowl; discard nibs. Whisk in cream and coarse salt. Chill custard until cold.
5. Process custard in ice cream maker according to manufacturer's instructions. Transfer to container; mix in remaining 6 tablespoons cocoa nibs. Cover and freeze at least 6 hours and up to 2 days.
6. For each sundae, place 2 scoops ice cream in short tumbler; spoon warm sauce over. Sprinkle with Chili-Lime Peanuts.

sugar, water, light corn syrup, cream of tartar, heavy whipping cream, butter, coarse kosher salt, vanilla, bittersweet chocolate, milk, cocoa, sugar, light corn syrup, egg yolks, cornstarch, chilled heavy whipping cream, coarse kosher salt

Taken from www.epicurious.com/recipes/food/views/hot-tin-roof-sundae-351246 (may not work)