Just mix the ingredients in order. These are tasty muffins with the gentle sweetness of kabocha squash.
I added raisins to my standard kabocha cake recipe (Recipe ID: 1652933) and baked in muffin cups. They only need half the baking time of regular muffins, so I often make these in the summer.
Adjust the baking time as necessary. They're nice without raisins too. You could enjoy the sweetness of the kabocha.
Enjoy Japanese food around the world.