Hasty Carrot Cake
"Grants a [x]-level movement speed boost. Even those who don't like carrots tend to enjoy the mild sweetness of this cake."
Hasty Carrot Cake is a piece of food in Breath of the Wild.
Breath of the Wild
If Link cooks Tabantha Wheat, Cane Sugar and Goat Butter with an Swift Carrot in a Cooking Pot, he will create Hasty Carrot Cake. Eating this will increase Link's movement speed for a time specified after cooking. Cooking under a Blood Moon may increase this effect, either in potency or duration.
Adding a Endura Carrot will cancel this effect out, leaving a plain Carrot Cake, while other clashing effects will also remove the Hasty effect. There is no benefit to doing this. Adding a Rushroom. Swift Violet or Fleet-Lotus Seeds will still make a Hasty Carrot Cake.
It is impossible to have a Hasty Carrot Cake with more than a "low-level level movement speed boost" without a critical success, either randomly or from the Blood Moon - doing so would require five Swift Carrots, or one Swift Carrot plus two of either Swift Violet or Fleet-Lotus Seeds, more than the recipe allows.