1. 1, dark chocolate and butter are cut into small pieces and put into a basin (without water), heated and stirred in water until they are completely dissolved into liquid.

2. Add sugar to the broken eggs. If the eggs are at room temperature, if they are taken out of the refrigerator, they need to be warmed before use.

3. Stir well with an egg beater. Add vanilla extract and stir well (no need to put it away)

4. Add the stirred egg liquid into the chocolate solution in step 1 (note the temperature) and mix well.

5, pour the powder, and chopped walnuts, and stir well.

6. Pour the batter into the mold, put it in a preheated oven at 180 degrees and bake for 25 to 30 minutes.

2. Precautions:

1, walnut kernels are baked in the oven for a while at 170℃ in advance, and they will be more fragrant after being roasted and cooled.

2. Brownies contain a lot of chocolate and butter, so the inside is still wet, soft and sticky when it is just baked. Whether it is cold or hot, the taste is very good.

3. If you want brownies to swell more, you can add 1/4 teaspoons of baking powder to the flour to make brownies more like cakes.