Step #2 FOR THE CARAMEL: Heat 1 1/2 c of the sugar & 1/2 c of the water in a small, heavy-bottomed saucepan until the sugar dissolves.
Step #3 Cook over med-heat/flame until the syrup turns a warm caramel color.
Step #4 Don't stir, just swirl it in the pan.
Step #5 Turn off the heat, add 1/2 c water & 1/2 tsps of the vanilla; be careful, the syrup will bubble violently.
Step #6 Stir & cook over high heat until the caramel reaches 230 degrees F.
Step #7 (thread stage) on a candy thermometer.
Step #8 Set aside.
Step #9 FOR THE PRALINE: Combine the almonds with 1/4 c of the caramel & spread them on a sheet pan lined with parchment paper.
Step #10 Bake for 10 to 12 mins, until the almonds are lightly browned.
Step #11 Allow to cool at about room temp & then break up in pieces.
Step #12 Lower the oven to 250°F Line 2 sheet pans with parchment paper.
Step #13 FOR THE MERINGUES: Beat the egg whites, salt & cream of tartar in the bowl of an electric mixer fitted with the whisk attachment on medium speed until frothy.
Step #14 Turn the mixer on high speed & add the remaining 1 c of sugar.
Step #15 Beat until the egg whites are very stiff & glossy.
Step #16 Whisk in the remaining tsp of vanilla.
Step #17 With dessert spoons place 12 mounds of meringue on parchment paper & bake for 20 mins, or until a cake tester comes out clean.
Step #18 FOR THE CREME ANGLAISE:.
Step #19 Beat the egg yolks & sugar in the bowl of an electric mixer fitted with the paddle attachment on medium-high speed for 3 mins, or until very thick.
Step #20 Reduce to lowish speed, & add the cornstarch.
Step #21 With the mixer still on low, slowly pour the hot milk into the eggs.
Step #22 Pour the custard mixture into a saucepan & cook over low heat/flame, stirring constantly with a wooden spoon, until thickened.
Step #23 The custard will coat the spoon like heavy cream.
Step #24 Don't cook it above 180F or the eggs will scramble!
Pour the sauce through a fine strainer, Cognac, add the vanilla extract, & vanilla seeds, if using, & chill in the fridge.
Step #25 FOR SERVING: Pour creme anglaise on the bottom of individual plates.
Step #26 Place a meringue on top of each serving, sprinkle with praline, drizzle with caramel sauce, & serve.
Step #27 To make a day or two ahead, leave the caramel & praline at about room temp & put in the fridge the creme anglaise.
Step #28 Bake the meringues before guests arrive & assemble the desserts just before serving.
Enjoy the Isle Flottante (Barefoot Contessa) (Floating Island) recipe