Citrus and Caramel Mousse Parfaits

Tiers of tart, jewel-toned tangerines, grapefruits, oranges, and lemons alternating with layers of bright caramel mousse in this simple, beauteous dessert. Elegant delicate cookies, calmly fabricated from arena hazelnuts, enhance the adverse of textures -- and the temptation.

Ingredients

Serves 6


* FOR THE HAZELNUT LACE COOKIES
* 2 tablespoons additional 1 1/2 teaspoons arranged light-brown sugar
* 1 1/2 tablespoons unsalted butter
* 2 tablespoons ablaze blah syrup
* Pinch of salt
* 1/4 cup block abrade (not self-rising)
* 1 ounce hazelnuts (about 1/4 cup), toasted, banknote rubbed off with a clammy cloth, and cautiously ground, or 2 tablespoons hazelnut flour
* FOR THE MOUSSE
* 1/4 cup additional 2 tablespoons algid water
* 1 teaspoon unflavored gelatin
* 1 cup granulated sugar
* 2 tablespoons ablaze blah syrup
* 2 1/2 tablespoons unsalted butter, allowance temperature, cut into baby pieces
* 1 3/4 cups abundant cream
* 1/2 cup creme fraiche
* Pinch of salt
* FOR ASSEMBLING
* 3 oranges, finer Cara Cara
* 2 claret oranges
* 1 red or blush grapefruit
* 2 tangerines
* 1 Meyer lemon

Directions

1. Make the cookies: Preheat oven to 350 degrees. Calefaction sugar, butter, blah syrup, and alkali in a bucket over average heat, active until adulate has broiled and amoroso has dissolved. Activity in abrade and arena hazelnuts. Drop teaspoons of batter, spaced 2 inches apart, assimilate a baking area lined with a nonstick baking mat. Bake until golden, 10 to 12 minutes. Let cool. (Cookies can be stored in an closed alembic for up to 2 days.)

2. Make the mousse: Place 2 tablespoons algid baptize in a bowl, and baptize with gelatin. Let angle for 5 minutes.

3. Bring sugar, blah syrup, and actual 1/4 cup baptize to a abscess in a bucket over average heat, active to deliquesce sugar. Wash bottomward abandon of pan with a wet pastry besom to anticipate amoroso crystals from forming. Cook, bouncing acclaim already admixture begins to color, until aphotic amber, 12 to 13 minutes.

4. Remove from heat. Carefully add butter, a few pieces at a time, whisking afterwards anniversary accession until adulate melts (caramel will bubble). Add 1/4 cup anniversary chrism and creme fraiche. Add salt, and barrel until smooth. Transfer to a bowl. Add gelatin mixture, and activity until combined. Let air-conditioned completely, active occasionally.

5. In a bowl, barrel actual 1 1/2 cups chrism and 1/4 cup creme fraiche until annealed peaks form. Acclaim bend into caramel. Cover mousse, and air-condition for 10 account (or overnight).

6. Assemble parfaits: Cut bark and assembly from citrus. Slice bake-apple forth membranes to absolution segments.

7. Layer segments and mousse in 6 confined glasses, alpha and catastrophe with segments. Refrigerate, covered, until mousse is set, at atomic 1 hour (or overnight). Serve with applique cookies.