Cotton-Soft Sponge Cake (Tang Mian Method) 海綿蛋糕 (燙麵法)

I am too used to eating chiffon cakes so sponge cakes, which are drier in texture, are not my cup of tea. However, with the introduction of the Tang Mian method, my sponge cakes are so fluffy and moist now! Like what I’ve mentioned in my Pandan chiffon cake blog post, gelatinized flour is able to absorb much more moisture. If you compare this recipe to a similar sponge cake recipe that uses three eggs and yields a 6-inch cake, you will spot that cakes made with the Tang Mian method contain much less flour but more liquids. I have been relying on my trusty digital thermometer when I scald my flour as I find that liquids that is too hot tends to ruin the yolk batter (I ended up having bits of dough in my yolk batter one time). Recently, I have tried a different approach by scalding the flour first with butter that is just starting to boil before adding in other liquids and egg yolks. The results have been satisfactory so far and I don’t need my thermometer anymore whenever I make this cake  =)

海綿蛋糕一向不是EC的那杯茶，因為吃慣雪芳蛋糕的EC覺得海綿蛋糕口感太乾。但當燙麵方法介入後，海綿蛋糕頓時變得濕潤柔軟！之前在有關燙麵班蘭雪芳蛋糕的網誌已提及，糊化後的麵粉能吸收更多水份，所以若以三蛋份量的六吋海綿蛋糕食譜相比，燙麵蛋糕的麵粉用量減少了，水份亦相對地多。以往EC做燙麵糰時一直依賴溫度計測溫(因為用太熱的液體去燙麵可能會導致燙麵糰過杰以致蛋黄糊結塊)，最近EC嘗試改變方法，先用剛煮至冒泡的牛油去燙麵，然後才加入其他液體和蛋黃拌勻，每次效果皆十分好，現在不用溫度計也能做到漂亮的燙麵蛋糕了！

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Cotton-Soft Sponge Cake (Tang Mian Method)
海綿蛋糕 (燙麵法)

Makes a 6-inch cake
可做6吋蛋糕一個

Ingredients

Yolk batter
45 g cake flour, sifted
35 g milk
35 g unsalted butter
3 large egg yolks
1/2 tsp vanilla bean paste or pure vanilla extract (optional)

Meringue
3 large egg whites
45 g granulated sugar
1/3 tsp cream of tartar

Notes: The eggs I use each has a net weight of 50 – 55 g.

材料

蛋黃糊
低筋麵粉(過篩) 45克
牛奶 35克
無鹽牛油 35克
大蛋蛋黃 3個
雲尼拿漿或純雲尼拿香油 1/2茶匙 (選用)

蛋白霜
大蛋蛋白 3個
細砂糖 45克
他他粉 1/3茶匙

註：EC用的蛋每隻淨重50-55克

Directions 做法

Separate egg whites and egg yolks. Line base of the cake pan with parchment paper (lining of the side is not necessary). You may need to wrap the cake pan with aluminum foil if a pan with removable base is used. The cake batter is thinner than normal sponge cake batter and may leak from the bottom. Preheat oven to 325ºF/160ºC.
分開蛋白和蛋黃，烤模底部放牛油紙(不用圍邊)，因麵糊比一般海綿蛋糕麵糊稀，用甩底模的話可用錫紙包模以免麵糊從底部漏出，焗爐預熱至 325ºF/160ºC。

For the yolk mixture, heat butter in a small saucepan with low heat until it just begins to bubble. Remove from heat. Pour butter into the flour and quickly stir with a whisk to form a paste. Add milk in two batches and mix until well combined. Stir in vanilla bean paste if using. Whisk in egg yolks one at a time, stirring well after each addition, to form a shiny, smooth, and paste-like batter.
蛋黃糊：無鹽牛油放小鍋小火煮至剛冒泡後離火，將牛油倒入麵粉中用蛋拂快手攪成燙麵糊，分兩次加入牛奶拌勻，加入雲尼拿漿(如用)拌勻，蛋黃逐個加入攪拌成光滑無顆粒、呈漿糊狀的蛋黃糊。

To make the meringue, place egg whites in a clean mixing bowl. With an electric mixer or stand mixer fitted with the whisk attachment, whip egg whites until frothy. Add cream of tartar (to stabilize the meringue) and continue to beat until foamy. Then slowly add sugar in batches and continue beating until close to firm peaks. When you lift the whisk, the meringue will stand straight up with a little curve at the tip.
蛋白霜：蛋白放在另一個乾淨的鋼盆中，用電動或座枱打蛋器打至泡泡變細密後加入他他粉(可令蛋白霜更穩定)，糖分次加入打至濕性發泡，拉起打蛋器蛋白霜尾部呈短小彎勾狀 。

Add one third of the meringue to the yolk batter and mix well to lighten. Add the remaining meringue in two batches. Fold gently and thoroughly with a spatula until you see no streaks of white. Do it quickly but gently so as not to deflate the meringue. Pour batter into the cake pan and smooth top with a spatula. Tap pan against the tabletop several times to get rid of any large air bubbles.
先將三分一蛋白霜與蛋黃糊完全混合，餘下蛋白霜分兩次以切拌手法與蛋黃糊混合至顔色均一(盡量輕手並快手完成攪拌以免蛋白霜消泡)，倒入烤模，抹平表面後將烤模往桌上輕敲幾下敲出較大的氣泡。

Bake in preheated oven for 10 minutes then reduce temperature to 300ºF/150ºC and bake for another 25 to 30 minutes or until a toothpick inserted in the center of cake comes out clean and cake feels springy to the touch (adjust time according to your own oven). Remove from oven and tap pan several times against the tabletop again to prevent shrinkage. Transfer pan to a wire rack to cool completely before unmolding.
放入預熱焗爐先烤10分鐘，再把溫度調低到300°F/150°C繼續烤25至30分鐘至熟，用竹簽插入蛋糕中央取出後不沾麵糊，用手按蛋糕表面會回彈即可取出(不同焗爐或許要不同時間，請自行調節)，取出蛋糕後將蛋糕連烤模往桌上敲幾下避免蛋糕回縮，在鐵架上完全放涼後可脱模。

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