Since the recipe for the signature Caramel Cake by Shuna Fish Lydon is posted here, I did not post the original recipe in my Daring Baker challenge. However, a successful gluten free conversion should have the information posted to help other bakers because gluten free baking requires more tweaking and adjusting. So here it is....
CARAMEL CUPCAKES WITH CARAMELIZED BUTTER FROSTING
10 Tbsp unsalted butter, room temperature
1 1/4 Cups granulated sugar
1/2 teaspoon kosher salt
1/3 Cup Caramel Syrup (recipe below)
2 extra large eggs, room temperature
½ tsp vanilla extract
2 cups Gluten Free Flour Mix*
1 tablespoon baking powder
1 & ½ tsp xanthan gum
1 cup milk, at room temperature
Preheat oven to 375F
Line 18 muffin cups with paper liners or butter and dust them with gluten free flour mix. Knock out the excess.
In a large bowl, cream butter until light in colour and smooth. Add sugar and salt; then cream until light in colour and fluffy. This works best with a hand mixer as opposed to a mixing stand as the mixer blades cut and incorporate more air.
Slowly pour room temperature caramel syrup into bowl. Scrape down bowl and increase speed. Add eggs/vanilla extract a little at a time, mixing well after each addition. The dough may look a little curdled but it will come together. Scrape down bowl again, beat mixture until light and uniform.
Sift flour mix, xanthan gum, and baking powder together. Sift it two or three times. This will incorporate more air into the mix, create a lighter cake, and mix the ingredients more evenly.
Add one third of the dry ingredients. When incorporated, add half of the milk, a little at a time. Add another third of the dry ingredients, then the other half of the milk and finish with the dry ingredients. This is called the dry, wet, dry, wet, dry method in cake making. It is often employed when there is a high proportion of liquid in the batter.
The xanthan gum will start to work and the mix will feel a little “gluey” and sticky.
By hand, use a spatula to do a few last folds, making sure batter is uniform. Dollop batter into prepared muffin tins. Fill right to the top but do not mound them.
Bake 20 to 25 minutes, until skewer inserted in middle comes out clean. Cool cupcakes completely before icing it.
Cupcakes will keep for three days outside of the refrigerator.
*Gluten Free Flour Mix (Makes 3 cups)
2 cups extra finely ground brown rice flour
2/3 potato starch
1/3 tapioca starch
2 cups sugar
1/2 cup water
1 cup water for "stopping" the caramelization process
In a small bowl, mix water and sugar until mixture feels like wet sand. Pour into stainless steel saucepan. Mixing the sugar and water in a bowl first, then pouring into the saucepan, eliminates the need to brush down sugar from the sides of the saucepan with a pastry brush.
Brush down any stray sugar crystals with wet pastry brush. Turn on heat to highest flame. Cook until smoking slightly - dark amber.
When color is achieved, put a piece of tinfoil with a small hole in the middle, over the saucepan and very carefully pour in one cup of water. If you don’t have tinfoil, parchment paper will work. A sieve placed over the sauce pan will damper the splutter too.
Do not take a chance on pouring water into an uncovered pan! Caramel will jump and sputter about therefore it’s very important to cover the pan first! It is very dangerous, so have long sleeves on if the pan is not covered and be prepared to step back.
Whisk over medium heat until it has reduced slightly and feels sticky between two fingers. Obviously wait for it to cool on a spoon before touching it.
Note: For safety reasons, have ready a bowl of ice water to plunge your hands into if any caramel should land on your skin.
CARAMELIZED BUTTER FROSTING
12 tablespoons unsalted butter
1 pound confectioner’s sugar, sifted
4-6 tablespoons heavy cream
2 teaspoons vanilla extract
2-4 tablespoons caramel syrup
¼ tsp finely ground Kosher or sea salt, or to taste
Cook butter until brown. Pour through a fine meshed sieve into a heatproof bowl, set aside to cool. Pour cooled brown butter into a mixing bowl.
In a stand mixer fitted with a paddle or whisk attachment, add confectioner's sugar a little at a time. When mixture looks too chunky to take any more, add a bit of cream and or caramel syrup. Repeat until mixture looks smooth and all confectioner's sugar has been incorporated. The icing should not be pasty and thick otherwise you'll split your icing bag if you try to pipe it!
Add salt to taste.
Pipe, dollop or spread icing onto cooled cupcakes.
Note: Caramelized butter frosting will keep in fridge for up to a month. To smooth out from cold, microwave a bit, then mix with paddle attachment until smooth and light