This week, I was asked to make a cake as a practical joke for the birthday of an 80-year-old guy. :) Adult cakes are not my usual kind of work, to say the least, but I didn't really want to say "no" to my husband's coworker (who had planned the joke), plus I do like a challenge every once in a while. So, on with the challenge I ran! :)
Apart from the obvious- that it is a breast and bra cake- it was actually a dark chocolate cake filled with whipped chocolate ganache, frosted with peanut butter frosting, and decorated with my homemade marshmallow fondant and buttercream frosting. I am including all the recipes below, as well as tips on making this particular cake, for any adult cake enthusiasts out there. :)
I used two 6" semi-sphere Wilton pans in which I baked my favorite recipe for
dark chocolate cake but modified the temperature and baking time to account for the fact that I was working with domes, not regular flat pans. I normally bake this cake at 350F, but in this case I had the oven set at 325F. Also, instead of the usual 25 minutes or so in two 8" round cake pans, I baked these for a little over 30 minutes. Baking the cakes at a lower temperature but for a longer time ensured that they baked more evenly- this way, I avoided overbaking the outside of the cake and having a hard crust. The recipe I have produces a little more batter than is necessary for the two 6" pans, so I just baked a few mini cupcakes with the extra batter. :)
Dark Chocolate Cake
Ingredients:
- 1 3/4 cups all-purpose flour
- 1 3/4 cups sugar
- 3/4 cup cocoa powder
- 2 tsps baking soda
- 1 tsp baking powder
- 1/2 tsp kosher salt
- 1 cup buttermilk, shaken
- 1/2 cup vegetable oil
- 2 eggs, room temperature
- 1 tsp vanilla extract
- 1 cup hot coffee
Directions:
Preheat the oven to 325 degrees F. Butter and flour two 6-inch semi-sphere
cake pans (or use
“PAM for Baking”).
1. Sift the flour, sugar, cocoa, baking soda, baking powder, and salt
into the bowl of an electric mixer fitted with a paddle attachment and
mix on low speed until combined.
2. In another bowl or large measuring cup, combine the buttermilk, oil, eggs, and vanilla. Gently whisk.
3. With the mixer on low speed, slowly add the wet ingredients to the
dry. With mixer still on low, add the coffee and stir just to combine –
scrape up from the bottom to make sure all the flour is incorporated. Batter will be very runny, but that is okay- this is a very moist cake!
4. Pour 2 1/2 cups of batter into each of the prepared pans and place them on top of a cookie sheet. This way, the batter that may spill over will end up in the cookie sheet and not all over your oven. The reason for overfilling your pans slightly and even letting them overflow a little is because you want them to bake by filling the pans completely once they are done. Only this way can you have perfect semi-spheres as the final product- you may need to level them off a little bit by cutting the tops slightly. Also, as I mentioned above, this recipe produces a little more batter than you need for this particular size and shape of cake pans, so you can just make a few mini cupcakes with the extra batter (an added bonus!). :)
5. Bake for about 30 minutes or
until a toothpick inserted in the center comes out clean. Cool in the
pans for 10 minutes, then turn them out onto a cooling rack to complete
cooling.
Whipped Chocolate Ganache
Ingredients:
12 oz (about 2 cups) semisweet chocolate chips or chopped chocolate
1 cup heavy whipping cream
Directions:
Bring the whipping cream to a boil in a little saucepan. Watch it
carefully, because it may boil over. Put the chocolate in a heat-proof
bowl. Pour the hot whipping cream over the chocolate. Stir a
little until the chocolate melts and mixture is smooth and glossy- it literally looks like brown velvet! :) Place ganache in refrigerator for about an hour, until ganache has cooled completely but is not yet hard- it should still be spreadable. Beat with electric mixer for about 3-4 minutes, until it becomes the consistency of frosting that can hold stiff peaks. Do not overbeat- it may become grainy! If this does happen, however, do not panic! Just melt the ganache again and run it through a fine-mesh sieve.
Use ready whipped ganache to fill your cake (I cut the dome in two horizontally and cut out some of the middle, to create a hollow spot inside- this became the home for my yummy whipped ganache!)
Peanut Butter Frosting
Ingredients:
1 cup (2 sticks) unsalted butter, at room temperature
1/2 cup creamy peanut butter (not natural)
3-4 cups powdered sugar, sifted
1 tsp vanilla extract
2-3 tbsp heavy cream or half-n-half
Directions:
In
the bowl of your electric mixer fitted with the paddle attachment, beat
the butter until creamy and smooth. Add the sifted powdered sugar,
one cup at a time, beating on low. Mix in the peanut butter and the
vanilla extract. Add the heavy cream, one tablespoon at a time, until
frosting reaches your desired consistency. Frost the outside of your cake with a crumb coating- a thin layer of frosting, just to seal in the crumbs, so to say. Leave for about 30 minutes or more. Apply final layer of frosting and smooth out with a large offset spatula. Leave to dry out a little bit- another 30 minutes or more. Using a Viva paper towel, pat the frosting very carefully with your hands and smooth out any imperfections. The resulting surface should be as smooth as a lady's skin. :)))
Marshmallow Fondant
Ingredients:
16 oz mini marshmallows
1/4 cup water
1 tsp vanilla extract
2 lbs powdered sugar, divided
1/4 cup vegetable shortening
Directions:
Place the marshmallows in a large
microwave-safe bowl, and microwave on High at 30 second intervals for about 1 to 1-1/2 minutes
to melt the marshmallows. Carefully stir the water and vanilla
extract into the hot marshmallows, and stir until the mixture is smooth.
Transfer mixture (it will be very sticky) to the bowl of your electric mixer which you sprayed liberally with PAM or greased with vegetable shortening. Use the dough hook attachment.
* (See note below). Beat in the confectioners' sugar, a cup at a time, until you
have a sticky dough. Reserve 1 cup of powdered sugar for kneading. The
dough will be very stiff. Continue kneading the fondant until the dough is smooth and no longer sticky to the touch (about 5-7 more minutes).
Form the fondant into two balls,
grease them with vegetable shortening (this prevents them from drying), wrap them tightly in plastic wrap, and refrigerate overnight. To use,
allow the fondant to come to room temperature, and roll it out onto a
flat surface dusted with confectioners' sugar (or if you prefer, use vegetable shortening instead- that's what I did). For this cake, I rolled out the fondant with a rolling pin that had a squiggly pattern on it, to replicate a fabric texture. I was pretty happy with the way it turned out.
Cut out the fondant into two large triangles and lay each one on the "breasts" for a bra. :) Trim off any excess.
* Note: If you are using all of the fondant in one color, the easiest way is to add your food coloring at this point. However, if you need different colors, then you will have to add the coloring after the kneading stage, when you separate the fondant, and work it in by hand while kneading- I suggest using latex gloves for this, to avoid technicolor hands. :)
Finally, I used Buttercream Frosting for making the lace on the bra after I placed the fondant, and also for the writing on the cake.
Ingredients:
1 stick unsalted butter, at room temperature
2 cups powdered sugar, sifted
1/2 tsp vanilla extract
2-3 tsp heavy cream or half-n-half
Directions:
Beat butter in the bowl of your electric mixer fitted with the paddle attachment until it is light and fluffy. Add powdered sugar gradually and beat until smooth. Add vanilla extract and cream (1 teaspoon at a time). Add desired food coloring, if using, and pipe frosting on your cake.
I adapted the following fondant recipe:
marshmallow-fondant