I made 4 times the amount (that is) written in the (sweets) recipe book.
We made 4 times more than the recipe called for, so of course you're tired!
I made 4 times as much as what is written in the recipe.
For example, we often say, "The recipe calls for 2 tablespoons of sugar." So, we can say, "I put in more sugar than the recipe called for."
In this case, you can also just simply say "4 times as much" or "4 times the amount."
例えば、よく次のように言います。
"The recipe calls for 2 tablespoons of sugar."
「レシピには砂糖を大さじ2杯入れると書いてあります」
ですから、次のように言えます。
"I put in more sugar than the recipe called for."
「レシピに書いてある量よりも多く砂糖を入れました」
この場合、シンプルに "4 times as much" あるいは "4 times the amount" と言うこともできます。
アメリカ合衆国 
