I LOVE WHOOPIE PIES! I love the messy and ooey-gooey goodness they leave behind on your fingers, which I never waste on a napkin. There possibilities are endless! My new favorite filling, which I used for this batch, is Biscoff cookie spread and Heath Toffee bits. ADDICTING is an understatement.
There is some debate about what makes a whoopie pie a whoopie pie … is it the shape? Is it the consistency? Is the filling wedge between to pieces of cake? Is it the filling itself – fluff and Crisco, an egg white cooked frosting or buttercream?
Whenever I make chocolate whoopie pies I make a double batch of devils food cake, but I reduce the water by 1/4 – 1/2 cup and slightly under bake to ensure that stick to your fingers goodness.
Don’t have the ingredients or time to make them from scratch – don’t sweat it! Use a box mix of devils food cake. When you use 2 boxes of your favorite devils food cake mix, reduce the water by 1/4 – 1/2 cup and slightly under bake. No one will ever know that you didn’t make them from scratch, and honestly, who cares? If they taste good that is all that matters!!
I always bake my whoopie pies on parchment lined baking sheets and use a small cookie scoop to portion them out. This helps them have that great circle, domed shape. Let them cool slightly and then run a spatula underneath each one. This will help the underneath layer get some air, which will help with you put the filling on, as it won’t be so tacky.
For the filling I grabbed two jars of Biscoff smooth spread and one bag of Heath toffee chips. I scrapped out every bit of spread into a mixing bowl, dumped in the entire bag of toffee chips and 1 1/2 of cups of powdered sugar. This amount of powdered sugar does not add too much sweetness or dull the flavor of the Biscoff spread – it merely adds structure to the spread so it doesn’t seep off the sides of the whoopie pie.
When placing the filling on the whoopies pies, I leave them on the parchment paper – I do not hold them or they will stick to your hands and you risk the cake crumpling in your hand. I find it easiest to put your filling into a piping bag and using a large round tip pipe the filling onto one side and then top with the other side. If you don’t have one then just get a heaping amount onto a butter knife and plop it in the center and gently spread the filling outward.
After I have made all my whoopie pies, I eat one. Someone has to do quality control! It’s a downright dirty job, but I will suck it up every time and eat one! Believe me, with this filling you will too!


