American Flag Cake


Happy 4th of July weekend! To celebrate, Amy from Aheirloom (aka amazing cake stands) and I have teamed up to bring you something special! Every time I go to visit Amy I am blown away by the new incredible things that they are working on. I used the new 12 inch maple wedding cake stand for this cake. 

This is a great cake to take to parties, or any 4th of July celebrations that you may be attending. While it looks super complicated, the thing that I love about the 'petal' buttercream method is that it only involves a piping bag, some tips and an offset spatula, and is much less fiddly than it seems! I have used Swiss meringue buttercream (based on the Bravetart recipe) because I like how smooth it is, but feel free to use your favourite style of buttercream here - I made about fifteen cups total. It seems like loads, but its much better to have a wee bit too much than not enough. 

I used an 845 ateco closed star tip (Slightly larger than a Wilton 2d) for the "stars" section of the cake, and an 805 ateco round tip for the 'stripes' section. I used 3 large disposable piping bags, with a coupler on one of the bags so that I could switch from the round to the star tips easily for the white color of buttercream. You could easily use whatever tips you have on hand, and play around with the sizes! 

The Cake is an adaptation of of my favourite vanilla cake from the Ovenly cook book.  I have made it countless times so far and it turns out great every time. (It was even the bottom tier in our monster wedding cake) I have tried creating my own version of a vanilla cake a couple of times now, but nothing tops this one. That being said, any flavour cake will work perfectly inside this - you just want to make sure that you have two 8 inch cakes that are at least two inches tall each. This recipe can also be easily scaled if you are wanting something slightly smaller - I am sure that this style of cake would work amazingly with a 6 inch cake too! The Cake takes a while to cool so ensure that you plan ahead. 



- Makes one four layer, 8 inch cake -

Inspired by "Erin Bakes"

Vanilla Cake
4 cups (500g) cake flour (To make this, replace 2 Tbsp of each cup of flour with corn starch)
2 Tbsp (24g) Baking powder
1 tsp salt
1 1/2 cups (360ml) heavy cream, at room temperature
1 cup (240ml) greek yoghurt
Seeds from 2 vanilla pods, or 2 tbsp Vanilla paste
2 1/2 cups (500g) Sugar
4 sticks (450g) butter, at room temperature
6 large eggs

Swiss Meringue Buttercream
15oz (425g) egg whites
15oz (425g) sugar
12 sticks (1.4kg) butter, cut into chunks, at room temperature. 
1/2 tsp Vanilla paste
Dark Blue and Red gel food colouring



Preheat oven to 350f/180c. Grease and flour two 8 inch cake tins. 

In a large bowl, sift together the cake flour, baking powder and salt. In a second bowl, combine the cream, yoghurt and vanilla paste. 

In the bowl of a stand mixer fitted with the paddle attachment (if you have the attachment with the blade it is great for this) or using an electric hand mixer, beat the butter and sugar on high for 5 minutes until pale, light and fluffy. Add the eggs one at a time, scraping the bowl down well after each addition. 

Turn the mixer off, and add a third of the flour mixture. Mix until just combined, then add half of the yoghurt/cream mixture. Mix on low. Add the second third of the flour mixture, followed by the remaining liquid, and finishing with the rest of the flour. Mix on low until just incorporated. Take care not to overmix. 

Divide the batter evenly between the two cake pans. Bake for 30-35 minutes, or until a skewer comes out clean. 

Cool 30 minutes in the pan, then remove and allow to cool completely. 


In the bowl of stand mixer, combine egg whites, vanilla and sugar. Whisk briefly until combined. Place the bowl of the mixer over a small saucepan of water, taking care that the water does not touch the bowl. Turn the heat to medium. 

Whisking occasionally to prevent the egg white cooking, bring the egg mixture to 150f/65c. Place the bowl back onto the mixer, fitted with the whisk attachment, and whip on high speed until the mixture has doubled in volume and is completely cool. Feel the outside of the bowl with your hands - there should be no trace of heat left (this is especially important for the next step to ensure that the butter does not melt when you add it). Cooling may take up to 20 minutes. 

Once the bowl is cool, add the butter one chunk at a time. If the mixture looks curdled/melted, do not worry, just continue whipping, it will come together!


Slice each cooled cake into two 1 inch layers (4 layers total) using a cake leveller, or a sharp bread knife. Trim the top of each cake if necessary to ensure a smooth level surface. If you are using a cake board, spread a small amount of the buttercream onto the board, before placing the first layer of the cake onto it. Place the board onto a turntable or lazy susan. 

Place 3/4 cup of buttercream on top of the bottom layer. Smooth out with an offset spatula, and place the second layer of cake on top. Repeat until the cake is stacked. Crumb coat the entire cake with a thin layer of buttercream. Ensure that the top is smoothed off, as it will not get covered later. Place the cake in the fridge for 20-30 minutes to cool 

While the cake is cooling, colour the buttercream. Divide the remaining buttercream in two. Leave one half white. Set aside a small amount of the second half of buttercream, and colour this blue. Colour the remainder red. If you would like your colours to be slightly darker, add a small drop of black gel fool colouring. I omitted this step, as I wanted my colours to be quite pastel.

Prepare three large piping bags, one fitted with a coupler. (If you dont have a coupler, prepare four bags, you need both a star tip and a round tip for the white). Fill a star tipped bag with blue, a round tipped bag with red, and the bag with the coupler with white. 

Remove the cake from the fridge. Beginning with blue, pipe three alternating dots of blue and white stars down the side of the cake (they will not go the whole way down). Using an offset spatula or the back of a spoon, smear the dots, leaving a 'tail'. Wipe the spatula off on a damp towel in between each smear to avoid colour mixing. Pipe the second line of dots on the tail of the first, beginning with white. (so the blue dot has white piped on it, and so forth)  Continue piping until you have seven lines, consisting of three smeared dots each. 

Swap the star tip for a round tip on the white piping bag. Starting beneath the first line of stars, and beginning with red, pipe three alternating blobs of white and red buttercream down the cake. Repeat the smearing process, remembering to wipe the spatula between. Continue lines of three dots until you are in line with the end of the 'star' section. 

Extend the lines of red and white 'stripe' dots up the cake. I had six dots in each row. Continue to repeat the piping and smearing process, until you are approximately half way around the cake. At this point you can choose to add another 'star' section, or just continue around the  cake with white and red stripes. When you reach the end, finish off the lines of stripes with a single blob of buttercream.