I have tweaked this recipe over several decades
Buck's Triple Fudge Brownies
this recipe makes enough for a half sheet pan so it makes a lot.
3 cups all purpose flour
2 3/4 cups sugar
1 teaspoon baking soda
5 Tablespoons cocoa powder
1 cup plain Greek Yogurt
1/2 cup vegetable oil
1/2 cup chocolate syrup
1 14oz can Eagle Brand sweetened condensed milk
2 cups semi sweet chocolate chips
1 teaspoon vanilla extract
Preheat oven to 350 degrees
combine dry ingredients and set aside
combine wet ingredients and mix well. Once wet ingredients are mixed well slowly combine with dry ingredients being careful to not overmix. Once ingredients are well combined pour into prepared half-sheet pan lined with parchment paper or well greased with cooking spray.
bake 20 to 24 minutes until toothpick pricked into center comes out clean.
remove from oven and allow to cool completely before glazing.
Prepare glaze by combining all glaze ingredients into a double boiler and allowed to incorporate completely stirring constantly. Remove from heat and allow to sit for a few minutes. Once brownies have cooled completely pour the glaze over the brownies and spread evenly. let them sit until the glaze sets completely.
Then cut them and serve.
(if you like you may add chocolate chips or chopped nuts to batter)