1 cup mayonnaise
1 cup dill pickles, finely chopped
1 Tablespoon fresh dill
1 teaspoon lemon juice
1 teaspoon sugar
1/4 teaspoon black pepper
2 Tablespoons yellow onion, finely chopped (or grated)
Base Layer
Begin with sugar and eggs. Beat with hand mixer until the sugar is completely incorporated. Add remaining ingredients. Grease the bottom (not the sides) of a large 14x20" cookie sheet and fill with batter. Bake for 28 minutes. (You may have to experiment with cooking time based on preference. Range is usually 25-30 minutes). Let cool completely.
Mint Layer
Beat ingredients together until fluffy. Start with the 1/3 cup of cream and add more until you have a spreadable mixture. (I usually use close to the 1/2 cup total). Spread over cooled brownies and put in the fridge to chill.
Ganache Chocolate Layer
Melt over low heat. If too thick add a little cream (I have never had to). Let cool slightly and spread over cold mint layer. Cool in fridge. After chocolate is set cover and refrigerate.
Note: These freeze great which allows you to make them ahead of time if needed! You can also make these Christmasy by adding some chopped peppermint candy bits on top.

This recipe is VERY forgiving and and VERY low maintenance and VERY delicious! The main trick is to just mix the dough the day or night before you want to eat it.
I usually double or quadruple this recipe. It doesn't take much additional time, and then I can either share a loaf with a friend or freeze the extra loaves for another meal. It is best fresh the day of cooking if you like a crispy chewy crust, which around here at our house is the preferred texture!