Banana Walnut Brownies - cooking recipe

Ingredients

1 teaspoon shortening, or as needed
2 cups white sugar
1 cup all-purpose flour
3/4 cup baking cocoa
1/2 cup melted butter
1/2 cup chopped walnuts
1/4 cup dark cocoa
2 eggs
2 tablespoons water
2 teaspoons vanilla extract
1 teaspoon salt
1 ripe banana, sliced

Preparation

Preheat oven to 350 degrees F (175 degrees C). Grease a 9x12-inch baking pan with shortening.
Mix sugar, flour, baking cocoa, butter, walnuts, dark cocoa, eggs, water, vanilla extract, and salt together in a bowl until batter is smooth. Pour the mixture into the baking pan; top with bananas.
Bake in preheated oven until top is dry and edges have started to pull away from the sides of the pan, about 30 minutes.