Stick to (6 tablespoons) 6 tablespoons of unsalted butter.

Three cups of whole milk

1 big egg

1 yolk

1 teaspoon vanilla extract

1 1/2 cups of gluten flour

1 cup of sugar

1 1/2 teaspoons of baking powder

1 teaspoon salt

1 1/2 cups of berries (frozen blackberries)

Preheat the third oven to above 375 degrees Fahrenheit, and spread a lot of butter or spray on the muffin mold. This recipe makes 12 standard muffins. If you use a cupcake liner, you don't have to oil the muffin tray.

Melt the butter over low heat, and then remove it from the fire. Mix egg yolk, milk, eggs and vanilla.

Put flour, sugar, baking powder and salt in a medium-sized bowl. Add milk and mix, stirring until completely mixed. Add berries slowly and thoroughly.

Put the batter into the muffin mold and mix well. Sprinkle a lot of turbinado on the sugar. Bake until golden brown, crispy wood excrement or string into the center of muffin, take out of the pan 18-20 minutes, clean and cool the pan and put it on a steel frame 15 minutes, then run a knife at the high point of the edge and carefully take out the muffin paper cup. I used a cupcake liner, which was fried in a pan and not oiled. ) heat, temperature or room temperature.