Ingredients:
- 1 cup of flour
- 1 cup of oil
- 1 cup pancake flour
- 1 cup of sugar
- 1 cup unsweetened cocoa
- 1 cup of milk
- 1 tablespoon baking powder
- 1 spoon of vanilla
- 1/4 teaspoon salt
- 2 tablespoons of white vinegar
- 4 eggs
- chocolate chips
Steps

Before making this recipe, make sure all the ingredients are ready. Then follow the recipe step by step to make delicious homemade shortbread cookies.
Step 1
First, preheat the oven to 200 degrees Celsius for about 18 minutes.
Step 2
Place the milk in a bowl and add the white vinegar, stir and let rest for 10 minutes until the milk starts to curdle.
step 3
In a bowl, place a sieve and add the wheat flour, baking powder and hot cake flour, sift, then add the cocoa and sift again very well.
Step 4
Next, we add the salt, vanilla, eggs, oil, sugar, chopped milk and, in the mixer, we begin to beat at low speed until all the ingredients are integrated.