FOR RUM COOKIE LAYER:
1. In a small bowl, sift flour and baking powder together. Set aside.

2. In the bowl of a stand mixer fitted with the paddle attachment, cream the butter and salt together on low speed until smooth.

3. In a separate bowl, whisk the egg yolk and rum flavoring, gradually adding the sugar while whisking, until the yolk is light and fluffy – about a minute. With the mixer on low, add the egg yolks to the butter, stopping the mixer to scrape down any butter clinging to the sides so it all gets incorporated.

4. Mix in sifted flour and baking powder until just incorporated. 

5. Wrap dough in plastic wrap and refrigerate for at least 2 hours, or up to 5 days. 

6. Grease and line 5-inch cake pan with parchment paper. 

7. Press dough into cake pan, being careful to keep the dough even. Place cake pan in freezer. 

8. Preheat oven to 350°F.

9. Whisk egg and water together. 

10. Remove cake pan from freezer and score top of cookie dough with knife. 

11. Brush with egg wash and place on center rack of oven. 

12. Bake for 15 minutes, or until golden brown. Cool on wire rack. 

FOR ORANGE GELEE:
1. Grease 5-inch cake pan and line with plastic wrap, taking care to make sure wrap is smooth. 

2. In small bowl, add cold water. Sprinkle gelatin on top, forking into water to make sure it is completely saturated, and allow to bloom 5-10 minutes. 

3. In small saucepan, add orange juice, raspberries, sugar, and orange flavoring. Bring to simmer, mashing raspberries, and taking care to dissolve all sugar, about 5 minutes. Remove from heat. 

4. Put medium sieve over bowl and pour mixture through to strain out seeds. Press to make sure all liquid is pushed through sieve. 

5. Add bloomed gelatin and stir until fully dissolved. 

6. Pour into prepared pan and place in freezer to set. 

FOR DARK CHOCOLATE INSERT:
1. In a small bowl, add chocolate pieces. 

2. In small saucepan, bring heavy cream to simmer.

3. Pour heated cream over chocolate and allow to sit for a few minutes. 

4. Add rum flavoring and stir until chocolate is fully incorporated into the cream. 

5. Pour into prepared pan. 

6. Sprinkle pecan pieces over top and press into ganache. 

7. Place in freezer to set.

8. Once the three internal components are completed and fully set, you can move on to making your mousse and assemble. 

FOR VANILLA BEAN MOUSSE:
1. Bloom gelatin sheets in small bowl of very cold water for at least 5 minutes. 

2. In small saucepan, add milk and vanilla bean paste. Place over med/low heat until it begins to boil. 

3. Meanwhile, in a small bowl, whisk eggs and sugar until light and fluffy. 

4. Once milk begins to boil, remove from heat and quickly whisk in egg and sugar mixture. Allow to continue cooking in pan, stirring often until mixture thickens. 

5. Stir in gelatin and pour through strainer into clean bowl. Allow to cool to room temperature, stirring often to prevent skin from forming. 

6. Once the milk/egg mixture is cool, add heavy cream to chilled bowl of stand mixer. 

7. Using the whisk attachment, whip until cream begins to thicken. 

8. Slowly add the milk/egg mixture and continue whipping until it is the consistency of a firmer whipped cream. 

9. Pour ¾ of the mousse into a round 8-inch (2 ½ inches deep) silicone pan.

10. Remove and unwrap ganache insert and place into mousse, pecan side down. Make sure it is in the middle of the dish and don’t press all the way down. You want to have a layer of mousse on top of the ganache. 

11. Place orange-raspberry gelee insert on top of ganache. 

12. Evenly spread a thin layer of mousse over the top of the orange gelee, making sure the gap between the side of the pan and the gelee is also filled. 

13. Add the cookie, round side facing the bottom of the pan.

14. Fill in any gaps with mousse and level. 

15. Place in freezer, overnight. After freezing overnight, you will prepare the mirror glaze. 

FOR WHITE CHOCOLATE MIRROR GLAZE:
1. Place gelatin sheets in large bowl of very cold water. Allow to bloom for 5 minutes. 

2. Add chocolate to a large, heat-safe bowl and set aside. 

3. Meanwhile, in a medium saucepan, add water, sugar, and condensed milk. Bring to boil for 1 minute. Remove from heat. 

4. Wring excess water from the gelatin sheets and add to sugar mixture. 

5. Pour sugar mixture over chocolate and let sit for several minutes to allow the chocolate to soften. 

6. Add orange liquid gel food coloring.

7. Use an immersion blender to completely mix sugar mix, color, gelatin, and chocolate. Make sure you keep the blender in the mixture. Lifting it up will incorporate air bubbles which you want to avoid. 

8. Using a large sieve, transfer mixture back and forth between two bowls. This will help remove air bubbles that may have formed. 

9. Place layer of plastic wrap over the top and allow to cool to 96°F.

10. Let glaze cool.

ASSEMBLY:
1. Once the glaze is cool enough to pour, remove the entremet from the freezer. Prepare an area to pour the glaze by setting a bowl, smaller than the entremets but big enough to be a supportive base, onto a large cookie sheet. 

2. Pop the entremet out of the pan and place cookie side down onto the inverted bowl.  

3. Starting in the middle, slowly and evenly pour the glaze over the entremet, taking care that the sides are being covered. 

4. Once the flow of the glaze has slowed down, use knife to remove any drips. 

5. Using two spatulas, carefully lift entremet off the bowl and place onto serving dish. 

6. Place back into fridge for at least 4 hours. 

7. Once glaze has set, garnish the top with your choice of toppings including: candy coated pecans, chocolate shards, macarons, fruit, or whatever you like!